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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