3.4.1 Measurements as specified in paragraphs
3.4.2, 3.4.3 and 3.4.4 relate to the ship in port condition.
3.4.2 When the noise from the ship's cargo handling
equipment may lead to noise above maximum levels in duty stations
and accommodation spaces affected by its operation, measurements should
be taken. Noise originating from sources external to the ship should
be discounted as indicated in paragraph 3.5.3.
3.4.3 Where the ship is a vehicle carrier and
noise during loading and discharging originates from vehicles, the
noise level in the cargo spaces and the duration of the exposure should
be considered in conjunction with chapter
5. Such noise levels originating from vehicles may be estimated
theoretically by the shipyard and shipowners in cooperation with the
Administration.
3.4.4 Measurements shall be taken in machinery
spaces with the machinery operating in the port condition if the provisions
of paragraph 5.3.5 in respect
of hearing protection shall be met in lieu of the provisions of paragraph 4.2.1 during maintenance,
overhaul or similar port conditions.