PART XVIII EXCAVATION, UNDERGROUND WORK AND ROCK CRUSHING — Entrapment danger
405
(1) A worker shall not enter a place where there is a danger of entrapment unless safe access has been provided by catwalks, walkways or other acceptable means or the worker wears retrieval equipment satisfying the requirements of Part XXVII and is attended by another worker who is stationed, equipped and capable of immediately effecting a rescue.
405(2)
An area in which materials may be dropped, dumped or spilled shall be barricaded and protected by warning signs to prevent the inadvertent entry of workers.
Not legal advice. Verify the cited article against the signed agreement.