The International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF Code) was adopted by the Maritime Safety Committee (MSC) at its ninety-fifth session in June 2015, by resolution MSC.391(95), in order to provide an international standard for the safety for ships using low-flashpoint fuel, other than ships covered by the IGC Code. The IGF Code is made mandatory under amendments to chapters II -1, II -2 and the appendix to the annex of the International Convention for the Safety of Life at Seas (SOLAS), 1974, that were adopted by the MSC at the same session, by resolution MSC392(95) (entry into force: 1 January 2017).

 

The adoption of the IGF Code was the culmination of over 10 years of work by several IMO bodies, starting with the approval by MSC78 (May 2004) of a work item on “Development of provisions for gas-fuelled ships”. Following the adoption by MSC86 (June 2009) of the Interim Guidelines on safety for natural gas-fuelled engine installations in ships (resolution MSC.285(86)), MSC 87 approved the expansion of the scope of the work on development of provisions for gas-fuelled ships to include ships fuelled by low-flashpoint liquid fuels. The present version of the IGF Code includes regulations to meet the functional requirements for natural gas fuel. Regulations for other low-flashpoint fuels will be added as, and when, they are developed by the Organization.

Foreword

 

International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF Code)

Preamble

 

Resolution MSC.391(95)

Adoption of the International Code of Safety for Ships using Gases or other Low-flashpoint Fuels (IGF Code)

 

Part A

2 General

2.1 Application

2.2 Definitions

2.3 Alternative design

3 Goal and functional requirements

3.1 Goal

3.2 Functional requirements

4 General requirements

4.1 Goal

4.2 Risk assessment

4.3 Limitation of explosion consequences

 

Part A-1 Specific requirements for ships using natural gas as fuel

5 Ship design and arrangement

5.1 Goal

5.2 Functional requirements

5.3 Regulations – General

5.4 Machinery space concepts

5.5 Regulations for gas safe machinery space

5.6 Regulations for ESD-protected machinery spaces

5.7 Regulations for location and protection of fuel piping

5.8 Regulations for fuel preparation room design

5.9 Regulations for bilge systems

5.10 Regulations for drip trays

5.11 Regulations for arrangement of entrances and other openings in enclosed spaces

5.12 Regulations for airlocks

6 Fuel containment system

6.1 Goal

6.2 Functional requirements

6.3 Regulations – General

6.4 Regulations for liquefied gas fuel containment

6.5 Regulations for portable liquefied gas fuel tanks

6.6 Regulations for CNG fuel containment

6.7 Regulations for pressure relief system

6.8 Regulations on loading limit for liquefied gas fuel tanks

6.9 Regulations for the maintaining of fuel storage condition

6.10 Regulations on atmospheric control within the fuel containment system

6.11 Regulations on atmosphere control within fuel storage hold spaces

(Fuel containment systems other than type C independent tanks)

6.12 Regulations on environmental control of spaces surrounding type C independent tanks

6.13 Regulations on inerting

6.14 Regulations on inert gas production and storage on board

7 Material and general pipe design

7.1 Goal

7.2 Functional requirements

7.3 Regulations for general pipe design

7.4 Regulations for materials

8 Bunkering

8.1 Goal

8.2 Functional requirements

8.3 Regulations for bunkering station

8.4 Regulations for manifold

8.5 Regulations for bunkering system

9 Fuel supply to consumers

9.1 Goal

9.2 Functional requirements

9.3 Regulations on redundancy of fuel supply

9.4 Regulations on safety functions of gas supply system

9.5 Regulations for fuel distribution outside of machinery space

9.6 Regulations for fuel supply to consumers in gas-safe machinery spaces

9.7 Regulations for gas fuel supply to consumers in ESD-protected machinery spaces

9.8 Regulations for the design of ventilated duct, outer pipe against inner pipe gas leakage

9.9 Regulations for compressors and pumps

10 Power generation including propulsion and other gas consumers

10.1 Goal

10.2 Functional requirements

10.3 Regulations for internal combustion engines of piston type

10.4 Regulations for main and auxiliary boilers

10.5 Regulations for gas turbines

11 Fire safety

11.1 Goal

11.2 Functional requirements

11.3 Regulations for fire protection

11.4 Regulations for fire main

11.5 Regulations for water spray system

11.6 Regulations for dry chemical powder fire-extinguishing system

11.7 Regulations for fire detection and alarm system

12 Explosion prevention

12.1 Goal

12.2 Functional requirements

12.3 Regulations – General

12.4 Regulations on area classification

12.5 Hazardous area zones

13 Ventilation

13.1 Goal

13.2 Functional requirements

13.3 Regulations – General

13.4 Regulations for tank connection space

13.5 Regulations for machinery spaces

13.6 Regulations for fuel preparation room

13.7 Regulations for bunkering station

13.8 Regulations for ducts and double pipes

14 Electrical installations

14.1 Goal

14.2 Functional requirements

14.3 Regulations – General

15 Control, monitoring and safety systems

15.1 Goal

15.2 Functional requirements

15.3 Regulations – General

15.4 Regulations for bunkering and liquefied gas fuel tank monitoring

15.5 Regulations for bunkering control

15.6 Regulations for gas compressor monitoring

15.7 Regulations for gas engine monitoring

15.8 Regulations for gas detection

15.9 Regulations for fire detection

15.10 Regulations for ventilation

15.11 Regulations on safety functions of fuel supply systems

Annex Standard for the use of limit state methodologies in the design of fuel containment systems of novel configuration

 

Part B-1

16 Manufacture, workmanship and testing

16.1 General

16.2 General test regulations and specifications

16.3 Welding of metallic materials and non-destructive testing for the fuel containment system

16.4 Other regulations for construction in metallic materials

16.5 Testing

16.6 Welding, post-weld heat treatment and non-destructive testing

16.7 Testing regulations

 

Part C-1

17 Drills and emergency exercises

18 Operation

18.1 Goal

18.2 Functional requirements

18.3 Regulations for maintenance

18.4 Regulations for bunkering operations

18.5 Regulations for enclosed space entry

18.6 Regulations for inerting and purging of fuel systems

18.7 Regulations for hot work on or near fuel systems

Annex LNG-bunker delivery note

 

Part D

19 Training

19.1 Goal

19.2 Functional requirements

A​​s a specialized agency of the United Nations, IMO is the global standard-setting authority for the safety, security and environmenta

Title: IGF Code: International Code of Safety for Ships Using Gases or Other Low-Flashpoint Fuels, 2016 Edition (K109E) (eBook)
Edition: 2016
Number of Pages: 115
Product Code: MM1423EA
ISBN: ISBN 13: 9789280116533, ISBN 10: 9280116533
Published Date: November 2016
Author: IMO

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