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ANNEX 4

DRAFT AMENDMENTS TO THE INTERNATIONAL CODE FOR THE CONSTRUCTION
AND EQUIPMENT OF SHIPS CARRYING DANGEROUS CHEMICALS IN BULK
(IBC CODE)

CHAPTER 8 - CARGO-TANK VENTING AND GAS-FREEING ARRANGEMENTS


1  In paragraph 8.1.1, the word "This" is replaced by the words "Unless expressly provided otherwise, this".

2  The following new paragraph 8.1.6 is added after existing paragraph 8.1.5:

  "8.1.6 Ships constructed on or after 1 July 1986 but before [date of entry into force of the amendments] should comply with the requirements of paragraph 8.3.3 by the date of the first scheduled dry-docking after [date of entry into force of the amendments], but not later than [3 years after the date of entry into force of the amendments]."

3  In the last sentence of the existing paragraph 8.3.2, the reference to "8.3.5" is replaced by the reference to "8.3.6".

4  The following new paragraph 8.3.3 is added after existing paragraph 8.3.2:

  "8.3.3 On ships constructed on or after [date of entry into force of the amendments], controlled tank venting systems should consist of a primary and a secondary means of allowing full flow relief of vapour to prevent over-pressure or under-pressure in the event of failure of one means. Alternatively, the secondary means may consist of pressure sensors fitted in each tank with a monitoring system in the ship's cargo control room or position from which cargo operations are normally carried out. Such monitoring equipment should also provide an alarm facility which is activated by detection of over-pressure or under-pressure conditions within tank."

5  Existing paragraphs 8.3.3 to 8.3.7 are renumbered as paragraphs 8.3.4 to 8.3.8.

6  In the last sentence of renumbered paragraph 8.3.5, the reference to "8.3.3.1" is replaced by the reference to "8,3.4.1".

CHAPTER 16 - OPERATIONAL REQUIREMENTS

7  In the list of additional operational requirements in paragraph 16.7, a reference to "8.3.6" is added.




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