О ТЕХНИКЕ БЕЗОПАСНОСТИ И ГИГИЕНЕ ТРУДА НА ПОРТОВЫХ РАБОТАХ. Конвенция. Международная организация труда. 06.06.79 152

Article 24

     1. Every  item  of loose gear shall be inspected regularly before
use.  Expendable or disposable slings shall not be reused. In the case
of  pre-slung cargoes,  the slings shall be inspected as frequently as
is reasonably practicable.
     2. For the purpose of paragraph 1 of this Article,  an inspection
means a visual inspection by  a  responsible  person  carried  out  to
decide whether,  so far as can be ascertained in such manner, the gear
or sling is safe for continued use.