Pt.1 Ch.1 General Regulations
Main changes coming into force 1 July 2006
Sec.1 Classification Principles
Text concerning the IACS “Early Warning Scheme” has been added to “Definitions” under item A211. This subject concerns the sharing, by all IACS members, of information regarding serious ship failures, engine room fires, explosions and equipment failures.
Rule text has been added to item B707, concerning how DNV will conform with the requirements for the IACS “Early Warning Scheme”.
Sec.2 Scope of Rules and Class Notations
A new Service and Type Notation, SSC (Probabilistic Damage Stability) has been introduced in Table B3. SSC means that the ship has been built in compliance with the sub-division and damage stability requirements in accordance with revised SOLAS Ch.II-1(IMO MSC194 (80).
The new class notations NAUT-OSV(A) and NAUT-OSV(T) have been introduced in Table B36. The notations address nautical safety for offshore support vessels.
Main changes coming into force 1 January 2007
Sec.2 Scope of Rules and Class Notations
A new ice class notation ICE-E has been added to Table B2, for which, similarly, as the present class notation ICE-C, the strengthening is limited to the forward ice belt region. ICE-E is intended for sporadic operation in local light drift ice areas.
The new class notation RATE-A has been added to Table B37. RATE-A has been introduced due to an increasing demand in the market for higher standards, in particular for oil tankers. RATE-A will, for tankers, cover both ESP and CAP Hull simultaneously. The rule requirement for the existing NAUTICUS( Operation) will be adjusted to be aligned with the content of the new version of Nauticus Ship Maintenance Toolbox.
The Special Feature notations COW and NLS have been included in Table B38. They cover crude oil washing for vessels less than 20 000 dwt and transport of noxious liquid substances according to MARPOL Annex II.
Pt.3 Ch.1 Hull Structural Design, Ships with Length 100 metres and above
Main changes coming into force 1 July 2007
Under Sec.5, item B103 has been extensively modified and a new item B105 has been inserted. The subsequent items have been renumbered. The reason for the change is to align the rules with changes introduced in IACS Unified Requirements S11, Rev.5.
Pt.3 Ch.3 Hull Equipment and Safety
Main changes coming into force 1 July 2007
Under Sec.2, item B101 has been revised to align with IACS Unified Requirements S6, Rev.4.
In accordance with current scope of class, Sec.10 “Lifesaving Arrangement” has been deleted. Sec.11 “Internal Communication” has been re-numbered Sec.10.
Pt.4 Ch.4 Rotating Machinery, Power Transmission
Main changes coming into force 1 July 2007
Under Sec.1 E300, TMON for podded propulsion has been withdrawn.
Pt.4 Ch.6 Piping Systems
Main changes coming into force 1 January 2007
General
The requirements for flexible hoses and mechanical joints have been aligned with IACS UR P2.7.4.
Certification requirements for piping and pumps for offshore supply vessels, previously held in Pt.5 Ch.7, have been added.
Requirements for remote stop of pumps and fans, already in Pt.4 Ch.9, have been deleted.
Sec.1 General Requirements
Cargo piping for offshore support vessels has been covered in Table B1.
Sec.2 Materials
Requirements for material in valves on fuel tanks, have also been applied to lub oil tanks, and tanks for other flammable fluids.
• Sec.4 Ship Piping Systems
The requirements for bilge wells in cargo holds have been clarified.
Sec.5 Machinery Piping Systems
The text covering requirements for heated fuel oil tanks has been corrected.
The text regarding oil level gauges has been clarified.
The requirements for remote stop of pumps have been deleted.
The text for bypass of flow-meters has been clarified.
The requirement for stop valve in series with self-closing valves for FO tank drainage has been deleted.
Sec.6 Pipes, Pumps, Valves, Flexible Hoses and Detachable Pipe Connections etc.
Table A4 giving permissible stresses with reference to DNV specific steel qualities, has been deleted.
Certification requirements for cargo pumps on offshore supply vessels have been included.
The requirements for flexible hoses (ref. IACS UR 2.7.4) have been revised.
The requirements for pipe couplings other than flanges (ref. IACS UR 2.7.4) have been revised.
Pt.4 Ch.9 Control and Monitoring Systems
Main changes coming into force 1 July 2007
Under Sec.5, item C104, covering burn-in screening procedure for key components of computer based systems, has been deleted.
Pt.4 Ch.10 Fire Safety
Main changes coming into force 1 July 2006
General
Means of escape will be covered by statutory services.
IMO requirements that shall be complied with when DNV is authorised by the flag administration, are covered in Appendix A "Interpretations and clarification to SOLAS Ch.II-2".
SOLAS definitions in Sec.1 D have been deleted and replaced by a SOLAS reference.
References to Guidelines No.17 "Definitions of plan approval documentation types used in DocReq, ships and offshore units/ installations" for the Nauticus Production System (NPS), have been included.
According to Appendix A H400 a fixed fire extinguishing system is required for incinerator room. Hence, Ch.7 Sec.3 C102 has been rephrased.
Pt.5 Ch.1 Ships for Navigation in Ice
Main changes coming into force 1 January 2007
Sec.1 General Requirements
Sec.2 Basic Ice Strengthening
In item Sec.1 B101, the definition text of sF has been modified.
Sec.1 and Sec.2 have been modified to cover a new additional, basic class notation ICE-E. As a consequence, the notation ICE-C becomes an intermediate notation between the ICE-1C and the ICE-E notations.
Sec.3 Ice Strengthening for the Northern Baltic
Item D301 has been modified so that m1 = 12 has been changed to m1 = 11 in the last list item. Further, under item D402, the first paragraph of list item 3) has been replaced by: The web thickness of the frames need not exceed one half of the thickness of the shell plating, calculated for a frame spacing of 0.45 m, assuming the yield stress of the plate not more than that used for the frame, minimum 9 mm. The reason for the change is to align the rules with the new guidelines of the Finnish Maritime Authorities.
Sec.4 Vessels for Arctic and Ice Breaking Service
In item A403 (previous item A405), the upper transition area definitions have been removed. A general revision of vertical extensions has been undertaken. Previous Fig.4, now Fig.3, has been revised accordingly.
In item B201, additional members have been categorized.
In item D400, correction factors for local ice pressures have been revised based on experience and work related to IACS Polar Code development. The factors have been revised from 0.25 for bottom area to a differentiation of 0.20 for vessels with notation ICEBREAKER or POLAR, and 0.10 for vessels with notation ICE only. Differentiation has also been introduced keeping 1.0 for the stem area for vessels with notation ICEBREAKER or POLAR, and introducing 0.8 for vessels with ICE notation only, fitted with pod or thruster propulsion units.
In item F302, the me-factors in Table F1 have been changed for balancing the required moment capacity to be generally consistent with that for longitudinal stiffeners.
A new sub-section element G700 has been introduced with basic rules for dimensioning of podded propulsors and azimuth thrusters, including supporting structure. Over the last few years there has been a rapid technological shift in the design of relevant vessels, a new standard practice having evolved which now needs to be implemented in the rules.
Sec.6 Winterization
This section has been amended to make the requirements for CP propellers, electric propulsion and stainless steel propellers applicable to vessels with Winterized Arctic notation instead of vessels with Winterized notation. As a consequence, item B102 and item B103 have been deleted and relocated as item E102 and item E103. Also, sub-section element E300 has been deleted and item E301 has been moved to E104.
Sec.7 DAT(-X°C)
The DAT(-XºC) requirements, previously found in Sec.4, have been collected and made more visible in a separate new section, Sec.7.
Pt.5 Ch.2 Passenger and Dry Cargo Ships
Main changes coming into force 1 July 2006
Sec.2 Passenger Ships
Sub-section G, “Life Saving Appliances and Arrangements” has been removed as part of the main class rules. It will be replaced by the new “Statutory interpretation document”.
Sec.11 Damage Stability Cargo Ships and Passenger Ships – Class Notation SSC
This is a new Section introducing a new voluntary class notation SSC aligned with the requirements of revised SOLAS Ch.11-1 (IMO-MSC194(80)) entering into force 1 January 2009. The new class notation implies that the ship is built in compliance with the subdivision and damage stability requirements in accordance with the revised convention.
Pt.5 Ch.3 Oil Carriers
Main changes coming into force 1 January 2007
General
The concept of "Gas Safe/Dangerous Zones and Spaces" has been replaced by "Non-hazardous/Hazardous Areas of Zone 0, 1 and 2". This mainly affects Sec.1, Sec.6 and Sec.8, which have been revised accordingly.
Most of the fire safety items have been deleted and replaced by reference to Pt.4 Ch.10.
Sec.8 Electrical Installations
The specification of permitted types of electrical equipment in the different Gas Dangerous Zones and spaces has been replaced by area classification of typical spaces and reference to Pt.4 Ch.8 Sec.11 for selection of equipment. Pt.4 Ch.8 Sec.11 "Hazardous Areas Installations" has previously been revised with regard to the concept of Hazardous Area Zones.
Appendix B List of Cargoes other than Oils
Appendix B has been deleted and replaced by necessary references.
Pt.5 Ch.4 Chemical Carriers
Main changes coming into force 1 January 2007
General
The concept of "Gas Safe/Dangerous Zones and Spaces" has been replaced by "Non-hazardous/Hazardous Areas of Zone 0, 1 and 2". This mainly affects Sec.1, Sec.10 and Sec.12, which have been revised accordingly.
Most of the fire safety items have been deleted and replaced by reference to Pt.4 Ch.10.
Sec.11 Fire Protection and Extinction
Requirements for structural fire protection have been removed. Sec.12 Electrical Installations.
The specification of permitted types of electrical equipment in the different Gas Dangerous Zones and spaces, has been replaced by an area classification of typical spaces (based on IEC 60092- 502) - and reference to Pt.4 Ch.8 Sec.11 for selection of equipment. Pt.4 Ch.8 Sec.11 "Hazardous Areas Installations" has previously been revised with regard to the concept of Hazardous Area Zones.
Appendix A List of Cargoes - Tanker for Chemicals
Appendix A has been deleted and replaced by references to the IBC Code.
Pt.5 Ch.7 Tugs, Supply Vessels and other Offshore/Harbour Vessels
Main changes coming into force 1 January 2007
Under Sec.7, sub-section D has been revised as follows: The stability requirements applicable for the CRANE notations has been made mandatory for all vessels where crane lifting is the main, or one of the main purposes, of the ship. Further, the stability requirements for the notation CRANE have been updated, taking into account that many of these ships are specialized and carry out the lifts within operational and environmental limitations.
Pt.5 Ch.11 Carriage of Dangerous Goods
Sec.1 General Requirements
Under A200, items regarding issuance of statutory certificates have been added.
Definition of classes of dangerous goods has been shortened, corresponding to the definitions in IMDG Code.
Definitions of the terms “Hazardous area” and “Extended hazardous area” have been added.
Sec.2 Requirements for Carriage of Dangerous Goods in Various Types of Cargo Spaces
B300 has been rewritten and updated to be in line with MSC/Circ. 1120, UISC79 and IEC60092-506.
B500 has been restructured and aligned with MSC/Circ. 1120 and UISC89.
B600 has been restructured to be more user friendly. No technical changes.
Under B700, item covering medical oxygen has been added.
B900 has been aligned with UISC103.
In subsections B and C, the references in "tables of requirements" have been updated.
Sec.3 Dangerous Goods Permitted in Passenger Ships, Including Car Ferries with more than 25 Passengers
This section has been deleted.
Pt.6 Ch.4 Additional Fire Protection (F-AMC)
Main changes coming into force 1 January 2007
General
The scope of this revision is to implement the experience gained with the new F-M class, revise the F-A part (accommodation) and to develop new rules for the F-C part (cargo spaces).
Sec.1 General Requirements
Item A101 has been amended to further clarify the applicability of the optional class notation F-AMC.
Sub-section element B100 Manuals and particulars, has been amended with respect to requirements to plans and documents that shall be submitted.
Sub-Section C Manuals has been modified and requirements to signboards have been deleted.
Sub-section D Firefighter's Outfits, has been completely revised to reflect current safety objectives.
Sec.2 Accommodation
The entire section has been revised. Requirement for A-60 transversal division of accommodation and A-60 protection of standard HVAC rooms and service trunks have been deleted. This is not an important part of the F-A additional class notation but has through the years been the root of several discussions. The above has been compensated by introducing self-closing cabin doors and use of optical smoke detectors in accommodation spaces. By experience fire hazard laundries shall now have A-class boundaries (B-class accepted under SOLAS).
Sec.3 Machinery Spaces
The entire section has been revised. Some items not considered to be cost efficient with respect to fire safety have been deleted. Among these are the additional requirements for escape hatches from the engine room and DNV's requirements for CO2 valves being of all stainless steel. Some of the existing requirements such as dead ship condition, centralised controls for shut down and release of fire extinguishing systems have been further clarified. Components known to have reliability problems have been specified to a higher standard or requirements introducing robust back-up arrangements have been added.
Sec.4 Cargo Decks and Cargo Spaces
The entire section has been revised. The requirements have been re-organised and each ship type given its part in order to make clear and user-friendly rules. The rules for tankers (oil/chemical and LPG/LNG) have been revised to suit today's expectations whereas new rules have been implemented for car carriers / ro-ro vessels, dry cargo / bulk and container carriers. The rules for these ship types were either no longer relevant or not available under the 2001 edition of F-C additional class notation.
Pt.6 Ch.14 Fuel Treatment and Conditioning Systems
Main changes coming into force 1 July 2006
General
Minor adjustments to the rule text have been done, modifying the text in accordance with new knowledge, and practical arrangements. The consequences of these rule changes for DNV customers are assumed small, yet it is intended that the modifications now proposed will make the rules more suitable - for both owners and building yards alike.
Sec.1 General Requirements
Item C101 has been amended with respect to plans and particulars that shall be submitted for approval.
Item D201 has been amended with respect to requirements for the fuel operation manual.
Sec.2 System Arrangements and Components
Requirements for transfer lines with respect to means for draining/sampling and venting have been deleted.
In item C206 a guidance note has been added to clarify the interpretation of requirements to drainage from fuel oil service tanks.
Sec.3 Instrumentation and Automation
The sub-section on requirements for measuring equipment for testing of fuel properties has been deleted.
Sec.4 Testing and Survey
In item A102 a guidance note has been added to clarify the requirements for sea trials.
PART 7 SHIPS IN OPERATION
Revised structure of rules for Ships in Operation - Part 7
The following principles were in focus in order to settle a revised structure for the rules;
Simple and logic structure.
Main class survey requirements are grouped, one section for each main class survey.
Optional class notations have been grouped. One letter for each survey.
The rules for periodical surveys are gathered within one rule chapter.
Part 7 has been restructured as follows:
Chapter 1 Survey Requirements – Includes all requirements in the present chapters 1, 2, 7 and 8 - i.e.
Chapter 1 - General Requirements, except section 6 - "Retroactive requirements"
Chapter 2 - Periodical Survey Requirements
Chapter 7 - NAUTICUS Class Notations
Chapter 8 - Machinery Survey Arrangements.
Chapter 2 - Retroactive Requirements – Includes retroactive requirements from the previous Pt.7 Ch.1 Sec.6.
(Content as today - except for the Pt.7 Ch.1 Sec.6 G - where some changes were based upon revised IACS S31)
Chapter 3 - Management of Safety and Environmental Protection (SEP) – Includes the requirements in the previous chapter 5.
Pt.7 Ch.1 Survey Requirements
The rule changes come into force January 2007, except for Sec.2 B, Sec.3 B and Sec.4 B and D which will come into force July 2006.
General
Within the description for one survey the following default structure has been used:
General Requirements
Hull and Equipment
Machinery and Systems
When additional requirements apply for certain ship types, the Subsection B has been (e.g.) expanded as follows:
B 100 General - all ships
B 200 General dry cargo ships subject to Extended Hull Survey Requirements (EHSR) - additional requirements
B 300 Dry bulk cargo ships subject to Enhanced Survey Programme (class notation ESP) - additional requirements
B 400 Oil and chemical tankers subject to Enhanced Survey Programme (class notation ESP) - additional requirements
Relationship between surveys
Requirements in an annual survey are not repeated for the related intermediate, renewal or complete surveys, meaning that the related surveys are to be completed concurrently with the annual survey.
E.g. the annual requirements for survey of "suspect" areas are not repeated in the Main Class Renewal survey - i.e. both surveys are to be carried out prior to renewal of the class certificate.
Alignment with IACS unified requirements
The rules include the recent changes made to IACS Z1, Z6, Z7 and Z10's as a consequence of the "harmonisation" task run in IACS 2004/2005.
Several changes have been made including the tables for close up and thickness measurements.
Stricter requirements for tanks to be recorded for annual surveys apply for oil and chemical tankers. (UR Z10.1, 10.3, 10.4). These requirements are planned to be in force as of 2006.07.01.
Summary
Revised scope for main class.
The level of detail in the rule requirements has been harmonized.
Mandatory class notations included as part of main class.
Harmonisation of the survey requirements between the ship types and surveys.
Alignment with IACS Unified Requirements Z1, Z6, Z7 and Z10's - up to September 2005 revisions:
several changes for hull structure surveys - i.e. areas for close up and thickness measurements.
annual survey is required for ballast tanks of oil and chemical tankers identified with fair or poor coating condition.
annual survey is required for ballast tanks of single hull oil tankers adjacent to heated cargo tanks.
Acceptance of master's confirmation for pressure testing of cargo tanks onboard ESP tankers.
Stronger focus on the ship's system and functions - as part of the main class machinery and systems:
The "machinery" table has been streamlined in order to bring machinery components into focus. Systems and functions are to a large degree kept outside the machinery arrangements - i.e. they are "always" to be inspected by a surveyor.
The machinery table has been simplified.
The requirements for electrical installations have been updated/ harmonised e.g. requirements for electrical installations is gas dangerous areas are now the same for all ship types.
Deletion of renewal survey for Machinery CM for all vessels except steam turbine driven vessels. Experience indicates that renewal survey should be required only for steam turbine driven vessels. For other vessels only annual survey will be required.
Pt.7 Ch.2 Retroactive Requirements
General
A consolidated restructuring and revision of Pt.7 Ch.1 and Pt.7 Ch.2 have been carried out with a view to:
improve the structure of the rules for ships in operation
simplify the survey systematics
clarify requirements to be included as part of mandatory class
avoid duplication of survey requirements.
Main changes coming into force January 2007
Pt.7 Ch.2 has been renamed “Retroactive Requirements” and is now made up of two sections:
Sec.1 Bulk Carriers containing the following sub-sections of previous Pt.7 Ch.1 Sec.6: A, B, C, D, E, G and I; re-numbered A, B, C, D, E, F and G.
Sec.2 Miscellaneous Requirements containing the following sub-sections of previous Pt.7 Ch.1 Sec.6:
F and H; re-numbered A and B.
Pt.7 Ch.3 Management of Safety and Environmental Protection (SEP)
General
This booklet is a reprint of the previous Pt.7 Ch.5 and has been renumbered Pt.7 Ch.3 in connection with the