5.1.1 The noise level limits as set out in chapter 4 are designed so that if they are complied
with seafarers will not be exposed to an Lex(24) exceeding
80 dB(A), i.e. within each day or 24-hour period the equivalent continuous
noise exposure would not exceed 80 dB(A). For a new ship, compliance
with these criteria should be verified on the basis of sea trial measurements
of noise levels by calculation of the expected noise exposure of each
category of crew members in accordance with the method prescribed
in section 3.7.
5.1.2 In spaces with sound pressure levels exceeding
85 dB(A), suitable hearing protection should be used, or to apply
time limits for exposure, as set out in this section, to ensure that
an equivalent level of protection is maintained.
5.1.3 Each ship to which these regulations apply
should include in their Safety Management System a section on the
company's policy regarding hearing protection, exposure limits and
conduct training on those matters, which will be logged in their training
records.
5.1.4 Consideration should be given to the instruction
of seafarers on these aspects, as recorded in appendix
2. No crew member should be exposed unprotected to peak values
exceeding 135 dB(C).