RULES FORCLASSIFICATION OFSHIPS

NEWBUILDINGS

SPECIAL SERVICE AND TYPEADDITIONAL CLASS

PART 5 CHAPTER 2

PASSENGER AND DRY CARGO SHIPSJANUARY 2005This booklet includes the relevant amendments and corrections shown in the July 2005 version of Pt.0 Ch.1 Sec.3.

CONTENTS PAGE

Sec. 1 General Requirements ................................................................................................................ 7Sec. 2 Passenger Ships ......................................................................................................................... 9Sec. 3 Ferries ...................................................................................................................................... 18Sec. 4 General Cargo Carriers ............................................................................................................ 27Sec. 5 Dry Bulk Cargo Carriers .......................................................................................................... 34Sec. 6 Container Carriers ................................................................................................................... 45Sec. 7 Car Carriers .............................................................................................................................. 59Sec. 8 Enhanced Strength for Bulk Carriers ....................................................................................... 62Sec. 9 Ships Specialised for the Carriage of a Single Type of Dry Bulk Cargo ................................. 83Sec. 10 Carriage of Refrigerated Containers......................................................................................... 84DET NORSKE VERITASVeritasveien 1, NO-1322 Hvik, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

CHANGES IN THE RULES

GeneralThe present edition of the rules includes additions and amendmentsdecided by the Board as of November 2004, and supersedes the Janu-ary 2004 edition of the same chapter, including later amendments.The rule changes come into force 1 July 2005.This chapter is valid until superseded by a revised chapter. Supple-ments will not be issued except for an updated list of minor amend-ments and corrections presented in Pt.0 Ch.1 Sec.3. Pt.0 Ch.1 isnormally revised in January and July each year.

Sec.5 Dry Bulk Cargo Carriers Sub-section element A100 has been brought in line with the SO-

LAS definition of a bulk carrier (SOLAS Ch. XII). Sec.10 Carriage of Refrigerated Containers This section is new and has been introduced to meet market

needs for class notations covering container reefer capacity. Ships complying with the requirements of this section may be

given the new additional class notation RC-1, RC-2 or RC-3.Comments to the rules may be sent by e-mail to rules@dnv.comFor subscription orders or information about subscription terms, please use distribution@dnv.comComprehensive information about DNV and the Society's services is found at the Web site http://www.dnv.com Det Norske VeritasComputer Typesetting (FM+SGML) by Det Norske Veritas Printed in Norway

Revised chapters will be forwarded to all subscribers to the rules.Buyers of reprints are advised to check the updated list of rule chap-ters printed in Pt.0 Ch.1 Sec.1 to ensure that the chapter is current.

Main changes Sec.3 Ferries In general, this section has been updated to align with IACS UR

S8 (Bow doors and inner doors) and S9 (Side shell doors andstern doors).

Corrections and ClarificationsIn addition to the above stated rule requirements, a number of correc-tions and clarifications have been made in the existing rule text.If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of Det Norske Veritas, then Det Norske Veritas shall pay compensation to such personfor his proved direct loss or damage. However, the compensation shall not exceed an amount equal to ten times the fee charged for the service in question, provided that the maximum compen-sation shall never exceed USD 2 million.In this provision "Det Norske Veritas" shall mean the Foundation Det Norske Veritas as well as all its subsidiaries, directors, officers, employees, agents and any other acting on behalf of DetNorske Veritas.

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Contents Page 3CONTENTS

SEC. 1 GENERAL REQUIREMENTS .......................... 7A. Classification..........................................................................7A 100 Application........................................................................7A 200 Class notations ..................................................................7

B. Definitions ..............................................................................7B 100 Symbols.............................................................................7

C. Documentation ......................................................................8C 100 General ..............................................................................8

SEC. 2 PASSENGER SHIPS .......................................... 9

A. General...................................................................................9A 100 Classification.....................................................................9A 200 Definitions.........................................................................9

B. Hull Arrangement and Strength..........................................9B 100 General ..............................................................................9B 200 Double bottoms in passenger ships...................................9B 300 Peak and machinery space bulkheads, shaft tunnels.........9

C. Machinery and Systems......................................................10C 100 General ............................................................................10

D. Emergency Source of Electrical Power and Emergency Installations..........................................................................10

D 100 General ............................................................................10D 200 Services to be supplied....................................................10D 300 Arrangement of emergency source(s) of power..............11D 400 Transitional source of emergency power ........................11D 500 Low-location lighting......................................................12D 600 Supplementary emergency lighting for ro-ro passenger

ships (Reg. II-1/42-1) .....................................................12D 700 Location of emergency switchboard, distribution...........12D 800 Inclinations (list and trim of ship)...................................12D 900 Periodical testing.............................................................12D 1000 Starting arrangements for emergency generating sets ....12

E. Fire Safety Measures for Passenger Ships .......................12E 100 Application......................................................................12E 200 Rule references and definitions.......................................12E 300 Documentation ................................................................12E 400 Main vertical zones and horizontal zones

(SOLAS Reg. II-2/9.2.2.1)..............................................12E 500 Protection of stairways and lifts in accommodation area

(SOLAS Reg. II-2/9.2.2.5)..............................................13E 600 Means of escape from accommodation spaces, service

spaces and control stations (SOLAS Reg. II-2/13.3.2.1 - 13.3.2.4) ...........................13

E 700 Means of escape from machinery spaces (SOLAS Reg. II-2/13.4.1)...............................................13

E 800 Means of escape from special category and open ro-ro spaces to which any passengers carried can have access (SOLAS Reg. II-2/13.5)..................................................14

E 900 Additional requirements to means of escape for ro-ro passenger ships................................................................14

F. Stability and Watertight Integrity.....................................14F 100 Application......................................................................14F 200 Documentation ................................................................15F 300 Intact stability..................................................................15F 400 Subdivision and damage stability ...................................15

G. Life Saving Appliances and Arrangements ......................16G 100 Survival craft and rescue boats (SOLAS Reg. III-21) ....16G 200 Survival Craft and Rescue Boat Embarkation

Arrangements (SOLAS Reg. III-23)...............................17G 300 Stowage of Survival Craft (SOLAS Reg. III-24)............17G 400 Muster Stations (SOLAS Reg. III-25) ............................17SEC. 3 FERRIES ............................................................ 18

A. General.................................................................................18

A 200 Assumptions....................................................................18A 300 Documentation................................................................18A 400 Definitions.......................................................................19A 500 Certification of control and monitoring system..............19

B. Hull Arrangement and Strength....................................... 19B 100 Vehicle decks, ramps and lifts ........................................19B 200 Securing of vehicles........................................................19B 300 Transverse strength .........................................................19

C. Openings and Closing Appliances .................................... 19C 100 Doors...............................................................................19C 200 Access openings..............................................................19C 300 Watertight integrity from the ro-ro deck (bulkhead

deck) to spaces below .....................................................20D. Bow Doors ........................................................................... 20D 100 Application and definitions.............................................20D 200 Arrangement ...................................................................20D 300 Materials .........................................................................20D 400 Design Loads ..................................................................21D 500 Strength criteria...............................................................21D 600 Structural arrangement....................................................22D 700 Plating .............................................................................22D 800 Stiffeners .........................................................................22D 900 Girders.............................................................................22D 1000 Closing arrangement, general .........................................23D 1100 Closing arrangement, strength ........................................23D 1200 Closing arrangement, system for operation and

indication and monitoring ...............................................24

E. Inlets and Drainage Arrangement.................................... 25E 100 Air intakes, ventilators, etc .............................................25E 200 Drainage of vehicle deck (class notation A) ...................25E 300 Freeing ports (class notation B) ......................................25F. Stability ............................................................................... 25F 100 General ............................................................................25

G. Life Saving Appliances and Arrangements ..................... 25G 100 Application......................................................................25G 200 Additional requirements for ro-ro passenger ships

(Regulation III/26) ..........................................................25SEC. 4 GENERAL CARGO CARRIERS ................... 27

A. General ................................................................................ 27A 100 Classification...................................................................27A 200 Documentation................................................................27

B. Hull Arrangement and Strength....................................... 27B 100 General ............................................................................27B 200 Hatch side cantilevers .....................................................27B 300 External vehicle ramps....................................................28B 400 Internal ramps and lifts ...................................................29B 500 Ceilings and cargo battens ..............................................29B 600 Protection of cargo..........................................................29B 700 Support of cargo handling equipment.............................29B 800 Securing points for lashing .............................................29B 900 Steel coils ........................................................................29

C. Permanent Decks for Wheel Loading .............................. 29C 100 General ............................................................................29C 200 Design loads....................................................................29C 300 Plating .............................................................................31C 400 Stiffeners .........................................................................31C 500 Girders.............................................................................32C 600 Details .............................................................................32

SEC. 5 DRY BULK CARGO CARRIERS................... 34

A. General ................................................................................ 34A 100 Classification...................................................................34A 200 Documentation................................................................38DET NORSKE VERITAS

A 100 Classification...................................................................18 A 300 Structural and leak testing...............................................39

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Contents Page 4 see Pt.0 Ch.1 Sec.3, July 2005B. Design Loads ....................................................................... 39B 100 Design cargo density and angle of repose.......................39B 200 Lateral pressure loads......................................................40

C. Bulk Carriers (full breadth holds) .................................... 40C 100 Hull arrangement.............................................................40C 200 Longitudinal strength ......................................................40C 300 Plating and stiffeners.......................................................40C 400 Girder systems.................................................................40C 500 Corrosion prevention.......................................................42

D. Ore Carriers (holds between longitudinal bulkheads) ... 42D 100 Hull arrangement.............................................................42D 200 Plating and stiffeners.......................................................42D 300 Girder systems.................................................................42

E. Detection of Water Ingress into Cargo Holds Ballast and Dry Spaces, and Availability of Drainage forward Spaces................................................... 43

E 100 Performance requirements ..............................................43E 200 Installation.......................................................................43E 300 Survey on board ..............................................................43E 400 Availability of drainage forward spaces ........................43

F. Requirements for the Fitting of a Forecastle for Bulk Carriers, Ore Carriers and Combination Carriers......... 44

F 100 Application and definition ..............................................44F 200 Dimensions......................................................................44

G. Access................................................................................... 44G 100 Access to and within spaces in, or forward of,

the cargo area ..................................................................44

SEC. 6 CONTAINER CARRIERS ............................... 45A. General ................................................................................ 45A 100 Classification...................................................................45A 200 Scope...............................................................................45A 300 Assumptions....................................................................45A 400 Definitions.......................................................................45A 500 Documentation ................................................................46A 600 Certification ....................................................................46A 700 Container stowage and securing instrument ...................47

B. Longitudinal and Local Strength ...................................... 47B 100 Definitions.......................................................................47B 200 Longitudinal and buckling strength ................................47B 300 Plating and stiffeners.......................................................48

C. Cellular Container Hold Structures ................................. 49C 100 General ............................................................................49C 200 Design loads ....................................................................49C 300 Plates and stiffeners ........................................................49C 400 Girder systems.................................................................50

D. Materials and Welding ...................................................... 54D 100 Support fittings welded into the hull structure................54D 200 Container securing equipment ........................................54D 300 Heat treatment .................................................................55D 400 Mechanical tests ..............................................................55D 500 Steel wire ropes ...............................................................55D 600 Welding ...........................................................................55

E. Type Approval, Testing and Marking of Container Securing Equipment and Support Fittings ...................... 55

E 100 Type approval .................................................................55E 200 Prototype testing .............................................................55E 300 Production testing ...........................................................55E 400 Marking ...........................................................................56

F. Arrangements for Stowing and Lashing of Containers .......................................................................... 56

F 100 General ............................................................................56F 200 Containers in cell guides .................................................56F 300 Containers secured by lashings and other removable

equipment........................................................................56

G. Design Loads ....................................................................... 56G 100 General ............................................................................56G 200 Static loads ......................................................................56

H. Strength Analysis ................................................................57H 100 Rigid containment arrangements ....................................57H 200 Non-rigid containment arrangements..............................57H 300 Support fittings................................................................57

I. Allowable Forces and Stresses...........................................57I 100 Forces acting on and within container structures............57I 200 Forces in container securing equipment..........................57I 300 Stresses in supporting structures .....................................57

J. Signboards ...........................................................................58J 100 General ............................................................................58

K. Non-Weathertight Arrangement for Weather Deck Hatch Covers ..................................................................................58

K 100 General ............................................................................58K 200 Bilge level alarms............................................................58K 300 Stability and damage stability .........................................58

SEC. 7 CAR CARRIERS ............................................... 59

A. General.................................................................................59A 100 Classification...................................................................59A 200 Documentation ................................................................59

B. Car Decks ............................................................................59B 100 General ............................................................................59B 200 Design loads....................................................................59B 300 Strength requirements .....................................................59B 400 Securing points for lashing of cars..................................60

C. Supports and Suspensions for Deck Pontoons (Class Notation MCDK)..................................................................60

C 100 General ............................................................................60C 200 Design loads....................................................................60C 300 Strength requirements .....................................................60

D. Stowing Arrangement for Deck Pontoons not in Use (Class Notation MCDK) ......................................................60

D 100 General ............................................................................60D 200 Arrangement on weather deck ........................................60D 300 Design loads....................................................................60D 400 Allowable stresses...........................................................61

SEC. 8 ENHANCED STRENGTH FOR BULK CARRIERS ......................................................... 62

A. Classification .......................................................................62A 100 Application......................................................................62A 200 Documentation ................................................................62A 300 Conditions of approval of loading manuals ....................62A 400 Condition of approval of loading instrument..................63A 500 Damage stability .............................................................63

B. Side Structure......................................................................63B 100 Application......................................................................63B 200 Plating and stiffeners.......................................................63B 300 Main frames ....................................................................64

C. Longitudinal Strength of Hull Girder in Flooded Condition for Bulk Carriers ..............................................66

C 100 General ............................................................................66C 200 Flooded conditions..........................................................66C 300 Flooding criteria..............................................................66C 400 Stress assessment ............................................................66

D. Corrugated Transverse Watertight Bulkheads, Considering Hold Flooding................................................67

D 100 Application and definition ..............................................67D 200 Load model .....................................................................67D 300 Strength criteria...............................................................71D 400 Local details ....................................................................75D 500 Corrosion addition...........................................................75

E. Limit to Hold Loading, Considering Hold Flooding .......75E 100 Application and definition ..............................................75E 200 Loading model ................................................................75E 300 Shear capacity .................................................................76DET NORSKE VERITAS

G 300 Dynamic loads.................................................................57 E 400 Limit to hold loading, considering flooding ...................78

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Contents Page 5F. Evaluation of Scantlings of Hatch Covers and Hatch Coamings of Cargo Holds of Bulk Carriers, Ore Carriers and Combination Carriers .................................................78

F 100 Application and definition ..............................................78F 200 Hatch cover load model ..................................................78F 300 Hatch cover strength criteria ...........................................79F 400 Buckling ..........................................................................79F 500 Deflection limit and connections between hatch cover

panels ..............................................................................80F 600 Hatch coaming load model .............................................80F 700 Hatch coamings strength criteria.....................................80F 800 Local details ....................................................................81F 900 Closing arrangements......................................................81F 1000 Corrosion addition and steel renewal..............................81

SEC. 9 SHIPS SPECIALISED FOR THE CARRIAGE OF A SINGLE TYPE OF DRY BULK CARGO.......................................... 83

A. General.................................................................................83A 100 Classification...................................................................83A 200 Documentation ................................................................83A 300 Design loads....................................................................83A 400 Longitudinal strength ......................................................83A 500 Plating and stiffeners.......................................................83A 600 Girder systems ................................................................83

SEC. 10 CARRIAGE OF REFRIGERATED CONTAINERS ................................................... 84

A. Classification....................................................................... 84A 100 Application......................................................................84A 200 Class notations ................................................................84

B. Operational Performance.................................................. 84B 100 General ............................................................................84

C. Documentation.................................................................... 84C 100 Plans and particulars .......................................................84

D. Ventilation and Hold Temperature .................................. 85D 100 General ............................................................................85D 200 Air supply........................................................................85

E. Electrical Installations ....................................................... 85E 100 General ............................................................................85

F. Instrumentation and Control System............................... 86F 100 General ............................................................................86F 200 Ventilation alarm system ................................................86F 300 Cargo refrigerating system..............................................86

G. Hold Access ......................................................................... 86G 100 General ............................................................................86

H. Inspection and Testing....................................................... 86H 100 General ............................................................................86DET NORSKE VERITAS

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Contents Page 6 see Pt.0 Ch.1 Sec.3, July 2005DET NORSKE VERITAS

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.1 Page 7SECTION 1 GENERAL REQUIREMENTS

A. ClassificationA 100 Application101 The rules in this chapter apply to ships intended for pas-sengers and or carriage of various dry cargoes. The require-ments shall be regarded as supplementary to those given for theassignment of main class.102 Statutory text that has been adopted in the rules will bewritten in normal rule text font (not italics) with a reference tothe corresponding statutory regulation. Statutory requirementsthat are outside the scope of class but important to consider inassociation with the rules shall in some cases be referred to inGuidance notes.

A 200 Class notations201 Ships complying with relevant additional requirementsof this chapter will be assigned one of the following class no-tations:

Passenger Ship (See Sec.2) Car Ferry A (or B) (See Sec.3) Train Ferry A (or B) (See Sec.3) Car and Train Ferry A (or B) (See Sec.3)General Cargo Carrier (RO/RO) (See Sec.4)Bulk Carrier ESP (BC-A, BC-B, BC-C, BC-B*) (SeeSec.5)Bulk Carrier (BC-A, BC-B, BC-C, BC-B*) (See Sec.5)Ore Carrier ESP (See Sec.5) Container Carrier (See Sec.6) Car Carrier (See Sec.7) X Carrier (See Sec.9)202 The notations:

may be added to relevant class notations given in 201.Ships arranged with movable car decks shall satisfy relevantdesign requirements regardless of the assignment of class no-tation.203 The notations:

RO/RO arranged for roll on/roll off cargo han-dling

BC-A designed to carry dry bulk cargoes of car-go density 1.0 t/m3 and above with spec-ified holds empty, at maximum draughtin addition to BC-B conditions.

BC-B designed to carry dry bulk cargoes of car-go density 1.0 t/m3 and above with allcargo holds loaded in addition to BC-Cconditions.

BC-C designed to carry dry bulk cargoes of car-go density less than 1.0 t/m3.

BC-B* designed to carry dry bulk cargoes ofdensity 1.0 t/m3 and above with any holdempty at maximum draught. Applicablefor double hull vessels and General Car-

HC-A designed to carry dry bulk cargoes of car-go density 1.0 t/m3 and above with spec-ified holds empty, at maximum draughtin addition to HC-B conditions. Not ap-plicable for bulk carriers with lengthmore than 150 m.

HC-B designed to carry dry bulk cargoes of car-go density 1.0 t/m3 and above with allholds loaded in addition to HC-C condi-tions. Not applicable for bulk carrierswith length more than 150 m.

HC-C designed to carry dry bulk cargoes of car-go density less than 1.0 t/m3. Not appli-cable for bulk carriers with length morethan 150 m.

HC-B* designed to carry dry bulk cargoes of car-go density 1.0 t/m3 and above with anyholds empty at maximum draught, appli-cable for double hull vessels and generalcargo carriers. Not applicable for bulkcarriers with length more than 150 m.

HOLDS...EMPTY combination of empty holds (See Sec.5)No MP not strengthened for multiport loading,

i.e. not designed to carry maximum al-lowable cargo hold design mass at re-duced draught

Max CargoDensity x.y. (t/m3)designed for a cargo density less than

3 t/m3ES(O) enhanced strength for ore carriers (See

Sec.5)ES(S) enhanced strength for single side skin

bulk carriers (See Sec.8)ES(D) enhanced strength for double side skin

bulk carriers (See Sec.8)are primarily applicable to general cargo carriers and bulk car-riers respectively as indicated in 201, but may be added to oth-er class notations after special consideration.

B. DefinitionsB 100 Symbols101 General

L = rule length in m *)B = rule breadth in m *)D = rule depth in m *)T = rule draught in m *)f1 = material factor *) = 1.0 for NV-NS steel = 1.08 for NV-27 steel = 1.28 for NV-32 steel = 1.39 for NV-36 steel = 1.43 for NV-40 steel

= for steel forgings

and castings.f = minimum upper yield stress in N/mm2, not to be taken

greater than 70% of the ultimate tensile strength. If notspecified on the drawings, f is taken as 50% of the ul-

PWDK permanent decks for wheel loading (See Sec.4)CONTAINER arranged for carriage of containers (See Sec.6)MCDK arranged with movable car decks (See Sec.7)PET arranged for lift on/lift off cargo handling and

arranged for carriage of vehicles (see Sec.4 )...TEU number of twenty-foot containers (See Sec.6)

f235---------

aDET NORSKE VERITAS

go Carriers. timate tensile strength.

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.1 Page 8 see Pt.0 Ch.1 Sec.3, July 2005a = 0.75 for f > 235 = 1.0 for f < 235f2 = stress factor *) = 1.0 when midship hull girder strength in accordance

with minimum section modulus.tk = corrosion addition in mm *)wk = section modulus corrosion addition in cm3 *)L1 = L but need not be taken greater than 300 m.s = stiffener spacing in m measured along the plating.l = stiffener span in m measured along the top flange of

the stiffener. zn = vertical distance in m from the baseline or deckline to

the neutral axis of the hull girder, whichever is rele-vant.

za = vertical distance in m from the baseline or deckline tothe point in question below or above the neutral axisrespectively.

*) For details see Pt.3 Ch.1

C. DocumentationC 100 General101 Details related to additional classes regarding design, ar-rangement and strength are in general to be included in theplans specified for the main class.102 Additional documentation not covered by the main classare specified in appropriate sections of this chapter.DET NORSKE VERITAS

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.2 Page 9SECTION 2 PASSENGER SHIPS

A. GeneralA 100 Classification101 The requirements in this section apply to all ships in-tended for transport or accommodation of passengers. For do-mestic trade, see Pt.1 Ch.1 Sec.2 B900.102 Ships arranged for transport of more than 12 passengersshall be built in compliance with the relevant requirements inthis section, and will be assigned one of the mandatory serviceand type notations Passenger Ship, Car Ferry A (or B),Train Ferry A (or B) or Car and Train Ferry A (or B). Seealso Sec.3.

A 200 Definitions201 Length of the ship is the length measured between per-pendiculars taken at the extremities of the deepest subdivisionload line.202 Deepest subdivision load line is the waterline, whichcorresponds to the greatest draught permitted by the subdivi-sion requirements, which are applicable.203 Bulkhead deck is the uppermost deck up to which thetransverse watertight bulkheads are carried.204 Margin line is a line drawn at least 76 mm below the up-per surface of the bulkhead deck at side.205 Machinery space shall be taken as extending from themoulded base line to the margin line and between the extrememain transverse watertight bulkheads, bounding the spacescontaining the main and auxiliary propulsion machinery, boil-ers serving the needs of propulsion, and all permanent coalbunkers. In the case of unusual arrangements, the Society willconsider the limits of the machinery spaces.(SOLAS Reg. II-1/2)

B. Hull Arrangement and StrengthB 100 General101 Sufficient effective side plating area shall be provided soas to transmit the shear forces and vertical forces to thestrength deck. If the ship's sides are arranged with rows of win-dows which will significantly reduce the shear strength, thestrength deck may be defined as a lower deck than accordingto the definition given for the main class. The hull structuralstrength is otherwise to be as required for the main class as-suming design loads for passenger spaces as for accommoda-tion deck or weather deck whichever is applicable.

B 200 Double bottoms in passenger ships201 A double bottom shall be fitted extending from the fore-peak bulkhead to the afterpeak bulkhead as far as this is prac-ticable and compatible with the design and proper working ofthe ship.

1) In ships of 50 m and upwards but less than 61 m in lengtha double bottom shall be fitted at least from the machineryspace to the forepeak bulkhead, or as near thereto as prac-ticable.

2) In ships of 61 m and upwards but less than 76 m in lengtha double bottom shall be fitted at least outside the machin-ery space, and shall extend to the fore and after peak bulk-

3) In ships of 76 m in length and upwards, a double bottomshall be fitted amidships, and shall extend to the fore andafter peak bulkheads, or as near thereto as practicable.

(SOLAS Reg. II-1/12).202 Where a double bottom is required to be fitted its depthshall be to the satisfaction of the Society and the inner bottomshall be continued out to the ship's sides in such a manner as toprotect the bottom to the turn of the bilge. Such protection willbe deemed satisfactory if the line of intersection of the outeredge of the margin plate with the bilge plating is not lower atany part than a horizontal plane passing through the point of in-tersection with the frame line amidships of a transverse diago-nal line inclined at 25 degrees to the base line and cutting it ata point one-half the ship's moulded breadth from the middleline.(SOLAS Reg. II-1/12).203 Small wells constructed in the double bottom in connec-tion with drainage arrangements of holds, etc., shall not extenddownward more than necessary. The depth of the well shall inno case be more than the depth less 460 mm of the double bot-tom at the centre line, nor shall the well extend below the hor-izontal plane referred to in paragraph 2. A well extending to theouter bottom is, however, permitted at the after end of the shafttunnel. Other wells (e.g., for lubricating oil under main en-gines) may be permitted by the Society if satisfied that the ar-rangements give protection equivalent to that afforded by adouble bottom complying with this Regulation.(SOLAS Reg. II-1/12).204 A double bottom need not be fitted in way of watertightcompartments of moderate size used exclusively for the car-riage of liquids, provided the safety of the ship, in the event ofbottom or side damage, is not, in the opinion of the Society,thereby impaired.(SOLAS Reg. II-1/12).B 300 Peak and machinery space bulkheads, shaft tun-nels301 A forepeak or collision bulkhead shall be fitted whichshall be watertight up to the bulkhead deck. This bulkheadshall be located at a distance from the forward perpendicular ofnot less than 5 per cent of the length of the ship and not morethan 3 m plus 5 per cent of the length of the ship.(SOLAS Reg. II-1/10).

Guidance note:The ship length definition given in SOLAS assumes the perpen-diculars at the extremities of the deepest subdivision load line.Preliminary calculations can be based on the complete waterlinelength at the given summer freeboard.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

302 Where any part of the ship below the waterline extendsforward of the forward perpendicular, e.g. a bulbous bow, thedistances stipulated in paragraph 1 shall be measured from apoint either:

at the mid-length of such extension; or at a distance 1.5 per cent of the length of the ship forward

of the forward perpendicular; or at a distance 3 m forward of the forward perpendicular;

whichever gives the smallest measurement.DET NORSKE VERITAS

heads, or as near thereto as practicable (SOLAS Reg. II-1/10).

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.2 Page 10 see Pt.0 Ch.1 Sec.3, July 2005303 Where a long forward superstructure is fitted, the fore-peak or collision bulkhead on all passenger ships shall be ex-tended weathertight to the next full deck above the bulkheaddeck. The extension shall be so arranged as to preclude the pos-sibility of the bow door causing damage to it in the case ofdamage to, or detachment of, a bow door.(SOLAS Reg. II-1/10).304 The extension required in paragraph 3 need not be fitteddirectly above the bulkhead below, provided that all parts ofthe extension are not located forward of the forward limit spec-ified in paragraph 1 or paragraph 2.(SOLAS Reg. II-1/10).305 Ramps not meeting the above requirements shall be dis-regarded as an extension of the collision bulkhead.(SOLAS Reg. II-1/10).306 An afterpeak bulkhead, and bulkheads dividing the ma-chinery space, as defined in regulation 2, from the cargo andpassenger spaces forward and aft, shall also be fitted and madewatertight up to the bulkhead deck. The afterpeak bulkheadmay, however, be stepped below the bulkhead deck. The after-peak bulkhead may, however, be stepped below the bulkheaddeck, provided the degree of safety of the ship as regards sub-division is not thereby diminished.(SOLAS Reg. II-1/10).307 In all cases stern tubes shall be enclosed in watertightspaces of moderate volume. The stern gland shall be situatedin a watertight shaft tunnel or other watertight space separatefrom the stern tube compartment and of such volume that, ifflooded by leakage through the stern gland, the margin linewill not be submerged.(SOLAS Reg. II-1/10).

C. Machinery and SystemsC 100 General101 For ships with class notation Passenger Ship the ma-chinery and systems are in general to be as required for themain class.

Guidance note:Requirements to bilge pumping in passenger ships are given inSOLAS Reg. II-1/21.2

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

102 Electrical distribution systems shall be so arranged thatfire in any main vertical zone, as defined in Pt.4 Ch.10, will notinterfere with services essential for safety in any other suchzone. This requirement will be met if main and emergencyfeeders passing through any such zone are separated both ver-tically and horizontally as widely as is practicable.

D. Emergency Source of Electrical Power and Emergency Installations

D 100 General101 Statutory text that has been adopted in the rules will bewritten in normal rule text font (not italics) with a reference tothe corresponding statutory regulation. Adopting statutory re-quirements by reference alone will not be used. Statutory re-quirements that are outside the scope of class but important toconsider in association with the rules shall in some cases be re-ferred to in Guidance notes.102 A self-contained emergency source of electrical power

103 The emergency source of electrical power, associatedtransforming equipment, if any, transitional source of emer-gency power, emergency switchboard and emergency lightingswitchboard shall be located above the uppermost continuousdeck and shall be readily accessible from the open deck. Theyshall not be located forward of the collision bulkhead.104 The location of the emergency source of electrical pow-er and associated transforming equipment, if any, the transi-tional source of emergency power, the emergency switchboardand the emergency electric lighting switchboards in relation tothe main source of electrical power, associated transformingequipment, if any, and the main switchboard shall be such asto ensure to the satisfaction of the Administration that a fire orother casualty in spaces containing the main source of electri-cal power, associated transforming equipment, if any, and themain switchboard or in any machinery space of category A willnot interfere with the supply, control and distribution of emer-gency electrical power. As far as practicable, the space con-taining the emergency source of electrical power, associatedtransforming equipment, if any, the transitional source ofemergency electrical power and the emergency switchboardshall not be contiguous to the boundaries of machinery spacesof category A or those spaces containing the main source ofelectrical power, associated transforming equipment, if any, orthe main switchboard.105 Provided that suitable measures are taken for safeguard-ing independent emergency operation under all circumstances,the emergency generator may be used exceptionally, and forshort periods, to supply non-emergency circuits.Non essential domestic supplies should not be directly con-nected to the emergency switchboard.

D 200 Services to be supplied201 The electrical power available shall be sufficient to sup-ply all those services that are essential for safety in an emer-gency, due regard being paid to such services as may have tobe operated simultaneously. The emergency source of electri-cal power shall be capable, having regard to starting currentsand the transitory nature of certain loads, of supplying simul-taneously at least the following services for the periods speci-fied hereinafter, if they depend upon an electrical source fortheir operation, as stated in the following items 202 to 207.202 For a period of 36 hours, emergency lighting:

1) at every muster and embarkation station and over the sidesas required by regulations III/11.4 and III/16.7 (Pt.3 Ch.3Sec.10);

2) in alleyways, stairways and exits giving access to the mus-ter and embarkation stations, as required by regulation III/11.5 (Pt.3 Ch.3 Sec.10);

3) in all service and accommodation alleyways, stairwaysand exits, personnel lift cars;

4) in the machinery spaces and main generating stations in-cluding their control positions;

5) in all control stations, machinery control rooms, and ateach main and emergency switchboard;

6) at all stowage positions for firemen's outfits;7) at the steering gear; and8) at the fire pump, the sprinkler pump and the emergency

bilge pump referred to in 205 and at the starting positionof their motors.

203 For a period of 36 hours:

1) the navigation lights and other lights required by the Inter-national Regulations for Preventing Collisions at Sea inDET NORSKE VERITAS

shall be provided. force; and

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.2 Page 112) the VHF radio installation required by regulation IV/7.1.1and IV/7.1.2; and, if applicable:2.1 the MF radio installation required by regulations IV/12.1.1, IV/12.1.2 , IV/10.1.2 and IV/10.1.3;2.2 the ship earth station required by regulation IV/10.1.1.;and2.3 the MF/HF radio installation required by regulationsIV/10.2.1, IV/10.2.2 and IV/11.1.

204 For a period of 36 hours:

1) all internal communication equipment required in anemergencyshall include:

i) The means of communication which is provided be-tween the navigating bridge and the steering gearcompartment.

ii) The means of communication which is provided be-tween the navigating bridge and the position in themachinery space or control room from which the en-gines are normally controlled.

iii) The means of communication which is provided be-tween the bridge and the radio telegraph or radio tele-phone stations.

iv) The means of communication which is provided be-tween the officer of the watch and the person respon-sible for closing any watertight door which is notcapable of being closed from a central control station.

v) The public address system or other effective means ofcommunication which is provided throughout the ac-commodation, public and service spaces.

vi) The means of communication which is provided be-tween the navigating bridge and the main fire controlstation;

2) the shipborne navigational equipment as required by regu-lation V/12.

3) the fire detection and fire alarm system, and the fire doorholding and release system; and

4) for intermittent operation of the daylight signalling lamp,the ship's whistle, the manually operated call points and allinternal signals that are required in an emergency;

unless such services have an independent supply for the periodof 36 hours from an accumulator battery suitably located foruse in an emergency.205 For a period of 36 hours:

1) one of the fire pumps required by regulation II-2/4.3.1 and4.3.3;

2) the automatic sprinkler pump, if any; and3) the emergency bilge pump, and all the equipment essential

for the operation of electrically powered remote controlledbilge valves.

206 For the period of time required by regulation 29.14 (Pt.4Ch.14 Sec.1 E300) the steering gear if required to be so sup-plied by that subsection.207 For a period of half an hour:

1) any watertight doors required by SOLAS Reg. II-1/15 tobe power operated together with their indicators and warn-ing signals.

2) the emergency arrangements to bring the lift cars to decklevel for the escape of persons. The passenger lift cars may

208 In a ship engaged regularly on voyages of short duration,the Administration if satisfied that an adequate standard ofsafety would be attained may accept a lesser period than the 36hour period specified in items 202 to 206 but not less than 12hours.

D 300 Arrangement of emergency source(s) of power301 The emergency source of electrical power may be eithera generator or an accumulator battery, which shall comply withthe following:302 Where the emergency source of electrical power is agenerator, it shall be:

1) driven by a suitable prime-mover with an independentsupply of fuel having a flashpoint (closed cup test) of notless than 43C;

2) started automatically upon failure of the electrical supplyfrom the main source of electrical power and shall be au-tomatically connected to the emergency switchboard;those services referred to in 400 shall then be transferredautomatically to the emergency generating set. The auto-matic starting system and the characteristic of the prime-mover shall be such as to permit the emergency generatorto carry its full rated load as quickly as is safe and practi-cable, subject to a maximum of 45 seconds; unless a sec-ond independent means of starting the emergencygenerating set is provided, the single source of stored en-ergy shall be protected to preclude its complete depletionby the automatic starting system; and

3) provided with a transitional source of emergency electricalpower according to 400.

303 Where the emergency source of electrical power is anaccumulator battery, it shall be capable of:

1) carrying the emergency electrical load without rechargingwhile maintaining the voltage of the battery throughout thedischarge period within 12 per cent above or below itsnominal voltage;

2) automatically connecting to the emergency switchboard inthe event of failure of the main source of electrical power;and

3) immediately supplying at least those services specified in400.

D 400 Transitional source of emergency power401 The transitional source of emergency electrical powerrequired by item 302.3) shall consist of an accumulator batterysuitably located for use in an emergency which shall operatewithout recharging while maintaining the voltage of the bat-tery throughout the discharge period within 12 per cent aboveor below its nominal voltage and be of sufficient capacity andso arranged as to supply automatically in the event of failure ofeither the main or emergency source of electrical power at leastthe following services, if they depend upon an electrical sourcefor their operation:402 For half an hour:

1) the lighting required by items 202 and 203.1;2) all services required by items 204.1), 204.3) and 204.4),

unless such services have an independent supply for theperiod specified from an accumulator battery suitably lo-cated for use in an emergency.

403 Power to operate the watertight doors, as required bySOLAS Reg. II-1/15, but not necessarily all of them simulta-neously, unless an independent temporary source of stored en-ergy is provided. Power to the control, indication and alarmDET NORSKE VERITAS

be brought to deck level sequentially in an emergency. circuits as required by SOLAS Reg. II-1/15, for half an hour.

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.2 Page 12 see Pt.0 Ch.1 Sec.3, July 2005D 500 Low-location lighting501 Passenger ships shall be provided with low-locationlighting (LLL) complying with IMO Res. A.752(18).D 600 Supplementary emergency lighting for ro-ro pas-senger ships (Reg. II-1/42-1) 1 In addition to the emergency lighting required by regula-

tion 42.2 (200), on every passenger ship with ro-ro cargospaces or special category spaces as defined in regulationII-2/3 (F101):1.1 all passenger public spaces and alleyways shall be

provided with supplementary electric lighting thatcan operate for at least three hours when all othersources of electric power have failed and under anycondition of heel. The illumination provided shallbe such that the approach to the means of escapecan be readily seen. The source of power for thesupplementary lighting shall consist of accumula-tor batteries located within the lighting units thatare continuously charged, where practicable, fromthe emergency switchboard. Alternatively, anyother means of lighting which is at least as effectivemay be accepted by the Administration. The sup-plementary lighting shall be such that any failure ofthe lamp will be immediately apparent. Any accu-mulator battery provided shall be replaced at inter-vals having regard to the specified service life inthe ambient conditions that they are subject to inservice; and

1.2 a portable rechargeable battery operated lamp shallbe provided in every crew space alleyway, recrea-tional space and every working space which is nor-mally occupied unless supplementary emergencylighting, as required by subparagraph .1, is provid-ed.

D 700 Location of emergency switchboard, distribution701 The emergency switchboard shall be installed as near asis practicable to the emergency source of electrical power.702 Where the emergency source of electrical power is agenerator, the emergency switchboard shall be located in thesame space unless the operation of the emergency switchboardwould thereby be impaired.703 No accumulator battery fitted in accordance with thisRegulation shall be installed in the same space as the emergen-cy switchboard. An indicator shall be mounted in a suitableplace on the main switchboard or in the machinery controlroom to indicate when the batteries constituting either theemergency source of electrical power or the transitional sourceof emergency electrical power referred to in item 302.3) or 400are being discharged.704 The emergency switchboard shall be supplied duringnormal operation from the main switchboard by an intercon-nector feeder which shall be adequately protected at the mainswitchboard against overload and short circuit and which shallbe disconnected automatically at the emergency switchboardupon failure of the main source of electrical power. Where thesystem is arranged for feedback operation, the interconnectorfeeder is also to be protected at the emergency switchboard atleast against short circuit.705 In order to ensure ready availability of the emergencysource of electrical power, arrangements shall be made wherenecessary to disconnect automatically non-emergency circuitsfrom the emergency switchboard to ensure that power shall beavailable to the emergency circuits.706 The arrangement of the emergency electric lighting sys-tem shall be such that a fire or other casualty in spaces contain-

transforming equipment, if any, the emergency switchboardand the emergency lighting switchboard will not render themain electric lighting system required by this regulation (Pt.4Ch.8 Sec.2 F201c) inoperative.See also Pt.4 Ch.8 Sec.2 F.

D 800 Inclinations (list and trim of ship)801 The emergency generator and its prime-mover and anyemergency accumulator battery shall be so designed and ar-ranged as to ensure that they will function at full rated powerwhen the ship is upright and when inclined at any angle of listup to 22.5 or when inclined up to 10 either in the fore or aftdirection, or is in any combination of angles within those lim-its.

D 900 Periodical testing901 Provision shall be made for the periodic testing of thecomplete emergency system and shall include the testing of au-tomatic starting arrangements.

D 1000 Starting arrangements for emergency generating sets1001 Starting arrangements for emergency generating setsshall comply with the requirements given for cargo ships inPt.4 Ch.8 Sec.2 C300.

E. Fire Safety Measures for Passenger Ships E 100 Application101 The requirements for fire protection in this section applyto any ship which carries more than twelve passengers.

E 200 Rule references and definitions201 These requirements are given in addition to those appli-cable for the main class, as given in Pt.4 Ch.10.202 For fire technical and space definitions, see Pt.4 Ch.10.

E 300 Documentation301 The following plans and particulars shall be submittedfor approval:

General arrangement plan showing main vertical zone ar-rangement including steps and recesses, stairways anddoors.

Arrangement of means of escape from different compart-ments and escape calculations.

E 400 Main vertical zones and horizontal zones (SOLAS Reg. II-2/9.2.2.1)401 In ships carrying more than 36 passengers, the hull, su-perstructure and deckhouses shall be subdivided into main ver-tical zones by A-60 class divisions. Steps and recesses shallbe kept to a minimum but where they are necessary, they shallalso beA-60 class divisions. Open deck spaces, sanitary orsimilar spaces, tanks, voids and auxiliary machinery spaceshaving little or no fire risk on one side or where fuel oil tanksare on both sides of the division the standard may be reducedto A-0.402 In ships carrying not more than 36 passengers, the hull,superstructure and deckhouses in way of accommodation andservice spaces shall be subdivided into main vertical zones byA class divisions.403 As far as practicable, the bulkheads forming the bound-aries of the main vertical zones above the bulkhead deck shallbe in line with watertight subdivision bulkheads situated im-mediately below the bulkhead deck. The length and width ofmain vertical zones may be extended to a maximum of 48 m inDET NORSKE VERITAS

ing the emergency source of electrical power, associated order to bring the ends of main vertical zones to coincide with

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.2 Page 13watertight subdivision bulkheads or in order to accommodatea large public space extending for the whole length of the mainvertical zone provided that the total area of the main verticalzone is not greater than 1 600 m2 on any deck. The length orwidth of a main vertical zone is the maximum distance be-tween the furthermost points of the bulkheads bounding it.404 Such bulkheads shall extend from deck to deck and tothe shell or other boundaries.405 Where a main vertical zone is subdivided by horizontalA class divisions into horizontal zones for the purpose ofproviding an appropriate barrier between a zone with sprin-klers and a zone without sprinklers, the divisions shall extendbetween adjacent main vertical zone bulkheads and to the shellor exterior boundaries of the ship.406 On ships designed for special purposes, such as automo-bile or railroad car ferries, where the provision of main verticalzone bulkheads would defeat the purpose for which the ship isintended, equivalent means for controlling and limiting a fireshall be substituted and specifically approved by the Society.Service spaces and ship stores shall not be located on ro-rodecks unless protected in accordance with the applicable re-quirements.407 However, in a ship with special category spaces, anysuch space shall comply with the applicable requirements tosuch spaces and where such compliance would be inconsistentwith other requirements for passenger ships specified in thisPart, the requirements for special category spaces shall prevail.408 The basic principle underlying the provisions of this par-agraph is that the main vertical zoning required by 401 and 402may not be practicable in vehicle spaces of passenger shipsand, therefore, equivalent protection shall be obtained in suchspaces on the basis of a horizontal zone concept and by the pro-vision of an efficient fixed fire-extinguishing system. Based onthis concept, a horizontal zone may include special categoryspaces on more than one deck provided that the total overallclear height for vehicles does not exceed 10 m.(SOLAS Reg. II-2/20.2.2.1)409 The basic principle underlying the provisions of para-graph 408 is also applicable to ro-ro spaces. (SOLAS Reg. II-2/20.2.2.2)E 500 Protection of stairways and lifts in accommoda-tion area (SOLAS Reg. II-2/9.2.2.5)501 Stairways shall be within enclosures formed of "A" classdivisions, with positive means of closure at all openings, ex-cept that:

.1 a stairway connecting only two decks need not be en-closed, provided the integrity of the deck is maintained byproper bulkheads or self-closing doors in one 'tween-deckspace. When a stairway is closed in one 'tween-deckspace, the stairway enclosure shall be protected in accord-ance with the requirements for decks; and

.2 stairways may be fitted in the open in a public space, pro-vided they lie wholly within the public space.

502 Lift trunks shall be so fitted as to prevent the passage ofsmoke and flame from one tween-deck to another and shall beprovided with means of closing so as to permit the control ofdraught and smoke. Machinery for lifts located within stairwayenclosures shall be arranged in a separate room, surrounded bysteel boundaries, except that small passages for lift cables arepermitted. Lifts which open into spaces other than corridors,public spaces, special category spaces, stairways and externalareas shall not open into stairways included in the means of es-

E 600 Means of escape from accommodation spaces, service spaces and control stations (SOLAS Reg. II-2/13.3.2.1 - 13.3.2.4)601 Below the bulkhead deck two means of escape, at leastone of which shall be independent of watertight doors, shall beprovided from each watertight compartment or similarly re-stricted space or group of spaces. Exceptionally, the Societymay dispense with one of the means of escape for crew spacesthat are entered only occasionally, if the required escape routeis independent of watertight doors.602 Where the Society has granted dispensation under theprovisions of 601, this sole means of escape shall provide safeescape. However, stairways shall not be less than 800 mm inclear width with handrails on both sides.603 Above the bulkhead deck there shall be at least twomeans of escape from each main vertical zone or similarly re-stricted space or group of spaces at least one of which shallgive access to a stairway forming a vertical escape.604 Stairway enclosures in accommodation and servicespaces shall have direct access from the corridors and be of asufficient area to prevent congestion, having in view thenumber of persons likely to use them in an emergency. Withinthe perimeter of such stairway enclosures, only public toilets,lockers of non-combustible material providing storage for non-hazardous safety equipment and open information counters arepermitted. Only public spaces, corridors, lifts, public toilets,special category spaces and open ro-ro spaces to which anypassengers carried can have access, other escape stairways re-quired by 605 and external areas are permitted to have directaccess to these stairway enclosures. Small corridors or "lob-bies" used to separate an enclosed stairway from galleys ormain laundries may have direct access to the stairway providedthey have a minimum deck area of 4.5 m2, a width of no lessthan 900 mm and contain a fire hose station.605 At least one of the means of escape required by 601 and603 shall consist of a readily accessible enclosed stairway,which shall provide continuous fire shelter from the level of itsorigin to the appropriate lifeboat and liferaft embarkationdecks, or to the uppermost weather deck if the embarkationdeck does not extend to the main vertical zone being consid-ered. In the latter case, direct access to the embarkation deckby way of external open stairways and passageways shall beprovided and shall have emergency lighting and slip-free sur-faces underfoot. Boundaries facing external open stairwaysand passageways forming part of an escape route and bounda-ries in such a position that their failure during a fire would im-pede escape to the embarkation deck shall have fire integrity,including insulation values, in accordance with appropriate re-quirements.606 Protection of access from the stairway enclosures to thelifeboat and liferaft embarkation areas shall be provided eitherdirectly or through protected internal routes which have fire in-tegrity and insulation values as required for stairway enclo-sures.

607 Stairways serving only a space and a balcony in thatspace shall not be considered as forming one of the requiredmeans of escape.608 Each level within an atrium shall have two means of es-cape, one of which shall give direct access to an enclosed ver-tical means of escape meeting the requirements of 605.609 The widths, number and continuity of escapes shall be inaccordance with the requirements in the Fire Safety SystemsCode.

E 700 Means of escape from machinery spaces (SOLAS Reg. II-2/13.4.1)701 Where the space is below the bulkhead deck the twoDET NORSKE VERITAS

cape. means of escape shall consist of either:

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.2 Page 14 see Pt.0 Ch.1 Sec.3, July 2005.1 two sets of steel ladders as widely separated as possible,leading to doors in the upper part of the space similarlyseparated and from which access is provided to the appro-priate lifeboat and liferaft embarkation decks. One ofthese ladders shall be located within a protected enclosurefrom the lower part of the space it serves to a safe positionoutside the space. Self-closing fire doors of the same fireintegrity standards shall be fitted in the enclosure. Theladder shall be fixed in such a way that heat is not trans-ferred into the enclosure through non-insulated fixingpoints. The protected enclosure shall have minimum inter-nal dimensions of at least 800 mm x 800 mm, and shallhave emergency lighting provisions; or

.2 one steel ladder leading to a door in the upper part of thespace from which access is provided to the embarkationdeck and additionally, in the lower part of the space and ina position well separated from the ladder referred to, asteel door capable of being operated from each side andwhich provides access to a safe escape route from the low-er part of the space to the embarkation deck.

702 Where the space is above the bulkhead deck, the twomeans of escape shall be as widely separated as possible andthe doors leading from such means of escape shall be in a po-sition from which access is provided to the appropriate lifeboatand liferaft embarkation decks. Where such means of escaperequire the use of ladders, these shall be of steel.703 In a ship of less than 1 000 gross tonnage, the Societymay dispense with one of the means of escape, due regard be-ing paid to the width and disposition of the upper part of thespace. In a ship of 1 000 gross tonnage and above, the Societymay dispense with one means of escape from any such space,including a normally unattended auxiliary machinery space, solong as either a door or a steel ladder provides a safe escaperoute to the embarkation deck, due regard being paid to the na-ture and location of the space and whether persons are normal-ly employed in that space. In the steering gear space, a secondmeans of escape shall be provided when the emergency steer-ing position is located in that space unless there is direct accessto the open deck.704 Two means of escape shall be provided from a machin-ery control room located within a machinery space, at least oneof which shall provide continuous fire shelter to a safe positionoutside the machinery space.

E 800 Means of escape from special category and open ro-ro spaces to which any passengers carried can have access (SOLAS Reg. II-2/13.5)801 In special category and open ro-ro spaces to which anypassengers carried can have access, the number and locationsof the means of escape both below and above the bulkheaddeck shall be to the satisfaction of the Society and, in general,the safety of access to the embarkation deck shall be at leastequivalent to that provided for under 601, 603, 605 and 606.Such spaces shall be provided with designated walkways to themeans of escape with a breadth of at least 600 mm. The park-ing arrangements for the vehicles shall maintain the walkwaysclear at all times.802 One of the escape routes from the machinery spaceswhere the crew is normally employed shall avoid direct accessto any special category space.

E 900 Additional requirements to means of escape for ro-ro passenger ships901 Escape routes shall be provided from every normally oc-cupied space on the ship to an assembly station. These escaperoutes shall be arranged so as to provide the most direct routepossible to the assembly station, and shall be marked with

(SOLAS Reg. II-2/13.7.1.1)Guidance note:Refer to Symbols related to life-saving appliances and arrange-ments adopted by IMO by Res. A.760(18).

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

902 The escape route from cabins to stairway enclosuresshall be as direct as possible, with a minimum number ofchanges in direction. It shall not be necessary to cross from oneside of the ship to the other to reach an escape route. It shall notbe necessary to climb more than two decks up or down in orderto reach an assembly station or open deck from any passengerspace.(SOLAS Reg. II-2/13.7.1.2)903 External routes shall be provided from open decks, as re-ferred to in 902, to the survival craft embarkation stations.(SOLAS Reg. II-2/13.7.1.3)904 Where enclosed spaces adjoin an open deck, openingsfrom the enclosed space to the open deck are, where practica-ble, to be capable of being used as emergency exits.(SOLAS Reg. II-2/13.7.1.4)905 Escape routes shall not be obstructed by furniture andother obstructions. With the exception of tables and chairswhich may be cleared to provide open space, cabinets and oth-er heavy furnishings in public spaces and along escape routesshall be secured in place to prevent shifting if the ship rolls orlists. Floor coverings are also to be secured in place. When theship is underway, escape routes shall be kept clear of obstruc-tions such as cleaning carts, bedding, luggage and boxes ofgoods.(SOLAS Reg. II-2/13.7.1.5)906 Escape routes shall be evaluated by an evacuation anal-ysis early in the design process. The analysis shall be used toidentify and eliminate, as far as practicable, congestion whichmay develop during an abandonment, due to normal move-ment of passengers and crew along escape routes, includingthe possibility that crew may need to move along these routesin a direction opposite the movement of passengers. In addi-tion, the analysis shall be used to demonstrate that escape ar-rangements are sufficiently flexible to provide for thepossibility that certain escape routes, assembly stations, em-barkation stations or survival craft may not be available as a re-sult of a casualty.(SOLAS Reg. II-2/13.7.4)

Guidance note:Refer to the Interim Guidelines for a Simplified EvacuationAnalysis on Ro-Ro Passenger Ships developed by IMO (MSC/Circ.909)

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

F. Stability and Watertight IntegrityF 100 Application101 Ships with class notation Passenger Ship shall com-ply with the requirements according to 300 and 400.102 The class requirements may be considered compliedwith when a national authority has carried out the approval inaccordance with the SOLAS Reg. II-1, Part B. 103 For ships in domestic trade and with service restrictions,alternative stability requirements may be accepted after con-DET NORSKE VERITAS

symbols. siderations in each separate case.

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.2 Page 15Guidance note:Ships having a lesser Subdivision and stability standard than cor-responding to the European Union (EU) Council Directive 98/18/EC of 17 march 1998 will generally not be accepted.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

F 200 Documentation201 The following documentation shall be submitted for ap-proval:

preliminary damage stability calculations final damage stability calculations damage control plan.

F 300 Intact stability301 Passenger ships shall comply with Pt.3 Ch.3 Sec.9 withthe supplementing requirements as given in 302 to 304.302 Loading conditionsThe following standard loading conditions shall be included:

ship in the fully loaded departure condition with full cargo,stores and fuel and the full number of passengers and theirluggage

ship with full stores and fuel and the full number of pas-sengers and their luggage, but without cargo

ship in the fully loaded arrival condition, with full cargoand the full number of passengers and their luggage butwith only 10% stores and fuel remaining

ship with only 10% stores and fuel and the full number ofpassengers and their luggage, but without cargo.

303 Additional criteria

the angle of heel on account of crowding of passengers toone side shall not exceed 10 degrees

the angle of heel on account of turning should not exceed10 degrees when calculated using the following formula:MR = 0.02 Vo2 D (KG d/2)/LMR = heeling moment (tm)Vo = service speed (m/s)L = length of ship at waterline (m)D = displacement (t)d = draught (m)KG = height of centre of gravity above keel (m).

304 When applying the additional criteria in 303 the follow-ing shall be assumed:

1) A mass of 75 kg shall be assumed for each passenger ex-cept that this value may be reduced to not less than 60 kgwhere this can be justified. In addition, the mass and dis-tribution of the luggage shall be taken into account.

2) The height of the centre of gravity for the passengers shallbe assumed equal to:

1.0 m above deck level for passengers standing up-right. Account may be taken, if necessary, of camberand sheer of deck

0.3 m above the seat in respect of seated passengers.

3) Passengers without luggage shall be considered as distrib-uted to produce the most unfavourable combination ofpassenger heeling moment and or initial metacentricheight, which may be obtained in practice. A value of notless than 4 persons per square metre shall be applied.

F 400 Subdivision and damage stability401 Passenger ships shall comply with the applicable regula-tions of SOLAS Reg. II-1, Part B.DET NORSKE VERITAS

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.2 Page 16 see Pt.0 Ch.1 Sec.3, July 2005G. Life Saving Appliances and ArrangementsG 100 Survival craft and rescue boats (SOLAS Reg. III-21)1 Survival craft

1.1 Passenger ships engaged on international voyages which are not short international voyages shall carry: 1.1.1 partially or totally enclosed lifeboats complying

with the requirements of section 4.5 or 4.6 of the Code on each side of such aggregate capacity as will accommodate not less than 50% of the total number of persons on board. The Society may permit the substitution of lifeboats by liferafts of equivalent total capacity provided that there shall never be less than sufficient lifeboats on each side of the ship to accommodate 37.5% of the to-tal number of persons on board. The inflatable or rigid liferafts shall comply with the requirements of section 4.2 or 4.3 of the Code and shall be served by launching appliances equally distribut-ed on each side of the ship; and

1.1.2 in addition, inflatable or rigid liferafts complying with the requirements of section 4.2 or 4.3 of the Code of such aggregate capacity as will accom-modate at least 25% of the total number of per-sons on board. These liferafts shall be served by at least one launching appliance on each side which may be those provided in compliance with the requirements of paragraph 1.1.1 or equivalent approved appliances capable of being used on both sides. However, stowage of these liferafts need not comply with the requirements of regula-tion 13.5.

1.2 Passenger ships engaged on short international voyages and complying with the special standards of subdivi-sion prescribed by regulation II-1/6.5 shall carry: 1.2.1 partially or totally enclosed lifeboats complying

with the requirements of section 4.5 or 4.6 of the Code of such aggregate capacity as will accom-modate at least 30% of the total number of per-sons on board. The lifeboats shall, as far as practicable, be equally distributed on each side of the ship. In addition inflatable or rigid liferafts complying with the requirements of section 4.2 or 4.3 of the Code shall be carried of such aggre-gate capacity that, together with the lifeboat ca-pacity, the survival craft will accommodate the total number of persons on board. The liferafts shall be served by launching appliances equally distributed on each side of the ship; and

1.2.2 in addition, inflatable or rigid liferafts complying with the requirements of section 4.2 or 4.3 of the Code of such aggregate capacity as will accom-modate at least 25% of the total number of per-sons on board. These liferafts shall be served by at least one launching appliance on each side which may be those provided in compliance with the requirements of paragraph 1.2.1 or equivalent approved appliances capable of being used on both sides. However, stowage of these liferafts need not comply with the requirements of regula-tion 13.5.

1.3 Passenger ships engaged on short international voyages and not complying with the special standards of subdi-vision prescribed by regulation II-1/6.5, shall carry sur-vival craft complying with the requirements of paragraph 1.1.

1.4 All survival craft required to provide for abandonment by the total number of persons on board shall be capa-ble of being launched with their full complement of per-sons and equipment within a period of 30 min from the time the abandon ship signal is given.

1.5 In lieu of meeting the requirements of paragraph 1.1, 1.2 or 1.3, passenger ships of less than 500 gross ton-nage where the total number of persons on board is less than 200, may comply with the following: 1.5.1 they shall carry on each side of the ship, inflata-

ble or rigid liferafts complying with the require-ments of section 4.2 or 4.3 of the Code and of such aggregate capacity as will accommodate the total number of persons on board;

1.5.2 unless the liferafts required by paragraph 1.5.1 are stowed in a position providing for easy side-to-side transfer at a single open deck level, addi-tional liferafts shall be provided so that the total capacity available on each side will accommo-date 150% of the total number of persons on board;

1.5.3 if the rescue boat required by paragraph 2.2 is also a partially or totally enclosed lifeboat com-plying with the requirements of section 4.5 or 4.6 of the Code, it may be included in the aggregate capacity required by paragraph 1.5.1, provided that the total capacity available on either side of the ship is at least 150% of the total number of persons on board; and

1.5.4 in the event of any one survival craft being lost or rendered unserviceable, there shall be sufficient survival craft available for use on each side, in-cluding those which are stowed in a position pro-viding for easy side-to-side transfer at a single open deck level, to accommodate the total number of persons on board.

1.6 A marine evacuation system or systems complying with section 6.2 of the Code may be substituted for the equivalent capacity of liferafts and launching applianc-es required by paragraph 1.1.1 or 1.2.1.

2 Rescue boats2.1 Passenger ships of 500 gross tonnage and over shall

carry at least one rescue boat complying with the re-quirements of section 5.1 of the Code on each side of the ship.

2.2 Passenger ships of less than 500 gross tonnage shall carry at least one rescue boat complying with the re-quirements of section 5.1 of the Code.

2.3 A lifeboat may be accepted as a rescue boat provided it also complies with the requirements for a rescue boat.

3 Marshalling of liferafts3.1 The number of lifeboats and rescue boats that are car-

ried on passenger ships shall be sufficient to ensure that in providing for abandonment by the total number of persons on board not more than six liferafts need be marshalled by each lifeboat or rescue boat.

The number of lifeboats and rescue boats that are car-ried on passenger ships engaged on short international voyages and complying with the special standards of subdivision prescribed by regulation II-1/6.5 shall be sufficient to ensure that in providing for abandonment by the total number of persons on board not more than nine liferafts need be marshalled by each lifeboat or res-cue boat. DET NORSKE VERITAS

Amended, Rules for Ships, January 2005see Pt.0 Ch.1 Sec.3, July 2005 Pt.5 Ch.2 Sec.2 Page 17G 200 Survival Craft and Rescue Boat Embarkation Arrangements (SOLAS Reg. III-23)1 On passenger ships, survival craft embarkation arrange-

ments shall be designed for:

1.1 all lifeboats to be boarded and launched either di-rectly from the stowed position or from an embar-kation deck but not both; and

1.2 davit-launched liferafts to be boarded and launchedfrom a position immediately adjacent to the stowedposition or from a position to which, in compliancewith the requirements of regulation 13.5 (Pt.3 Ch.3Sec.10), the liferaft is transferred prior to launch-ing.

2 Rescue boat arrangements shall be such that the rescueboat can be boarded and launched directly from thestowed position with the number of persons assigned tocrew the rescue boat on board. Notwithstanding the re-quirements of paragraph 1.1, if the rescue boat is also alifeboat and the other lifeboats are boarded and launchedfrom an embarkation deck, the arrangements shall be suchthat the rescue boat can also be boarded and launchedfrom the embarkation deck.

G 300 Stowage of Survival Craft (SOLAS Reg. III-24)The stowage height of a survival craft on a passenger ship shalltake into account the requirements of regulation 13.1.2 (Pt.3Ch.3 Sec.10), the escape provisions of regulation II-2/28(E900), the size of the ship, and the weather conditions likelyto be encountered in its intended area of operation. For a davit-launched survival craft, the height of the davit head with thesurvival craft in embarkation position, shall, as far as practica-ble, not exceed 15 m to the waterline when the ship is in itslightest seagoing condition.

G 400 Muster Stations (SOLAS Reg. III-25)1 Every passenger ship shall, in addition to complying with

the requirements of regulation 11, have passenger musterstations which shall:

1.1 be in the vicinity of, and permit ready access for thepassengers to, the embarkation stations unless inthe same location; and

1.2 have ample room for marshalling and instruction ofthe passengers, but at least 0.35 m2 per passenger.DET NORSKE VERITAS

Rules for Ships, January 2005 Amended,Pt.5 Ch.2 Sec.3 Page 18 see Pt.0 Ch.1 Sec.3, July 2005SECTION 3 FERRIES

A. GeneralA 100 Classification101 The requirements in this section apply to ships intendedfor regular transport of passengers and vehicles. The require-ments for passenger ships given in Sec.2 are also to be com-plied with.102 Ships arranged for carriage of vehicles on encloseddecks and built in compliance with relevant requirements spec-ified in the following will be given one of the class notationsCar Ferry A, Train Ferry A or Car and Train Ferry Awhichever is applicable.103 Ships arranged for carriage of vehicles on weather deckonly and built in compliance with relevant requirements spec-ified in the following will be given one of the class notationsCar Ferry B, Train Ferry B or Car and Train Ferry Bwhichever is applicable.

A 200 Assumptions201 The requirements for the class notation B are based onthe assumption that service restriction notation R2 or stricterare included in the main class.

A 300 Documentation301 The following plans and particulars shall be submittedfor approval:

a) Stern, side shell and bow doors (outer and inner) includingforce carrying structures of door cleat and support devicesand their supporting structure of the hull.

b) Closing arrangement for doors including system for oper-ation.

c) Operating and maintenance manual for bow doors, sideshell doors and stern doors.The operating and maintenance manual shall be providedon board and shall contain necessary information on :

main particulars and design drawings

special safety precautions details of vessel, class, statutory certificates equipment and design loading (for ramps) key plan of equipment (doors and ramps) manufacturer's recommended testing for equipment description of equipment

- bow doors- inner bow doors- bow ramp/doors- side doors- stern doors- central power pack- bridge panel- engine control room panel

service conditions

limiting heel and trim of ship for loading/unloading limiting heel and trim for door operations doors/ramps operating instructions doors/ramps emergency operating instructions

maintenance

schedule and extent of maintenance

acceptance/rejection criteria, acceptable clearances manufacturer's maintenance procedures

register of inspections, including: inspection of locking, securing and supporting devic-

es repairs and renewals.

The operating and maintenance manual shall be submittedfor approval with respect to the items listed above beingcontained in the manual. In addition, the inclusion of thenecessary information with regard to inspections, trouble-shooting and acceptance/rejection criteria in the mainte-nance part shall be verified.Guidance note:It is recommended that recorded inspections of the door support-ing and securing devices be carried out by the ship's staff atmonthly intervals or following incidents that could result in dam-age, including heavy weather or contact in the region of the shelldoors.Any damage recorded during such inspections shall be reportedto the Society. This is also to be stated in the operating and main-tenance manual.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

Guidance note:Reference is made to the safety management system described inthe ISM Code.

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

d) Arrangement of accesses from the ro-ro deck (bulkheaddeck) to spaces below (showing all doors, ramps, hatchesetc.).

302 The following plans and particulars are normally to besubmitted for information:

a) An arrangement plan showing the position of watertightdoors in the stern, sides, bow and collision bulkhead in re-lation to the watertight subdivision of the hull.

b) Arrangement of doors including hydraulic and mechanicalsupporting, cleating and locking arrangements as relevant.For doors with clear opening >12 m2, the design supportforces considered and or determined for each support shallbe stated on the arrangement drawing and submitted to-gether with design calculations carried out. For bow doorsthe longitudinal, transverse and vertical projections shallbe shown.

c) Arrangement of air intakes, ventilators etc.d) Arrangement of doors from vehicle deck.e) Drainage openings and or freeing ports for vehicle deck

and space betwee