PART XVIII EXCAVATION, UNDERGROUND WORK AND ROCK CRUSHING — Removal of material
408
(1) A worker shall not permit excavated material to remain
408(a)
within 1.22 metres of the edge of a trench-type excavation; or
408(b)
within 1.52 metres of the edge of a pit-type excavation.
408(2)
Where skips or buckets are used to remove material from excavations, a horizontal shoring member shall be protected against dislodgement by the installation of vertical planking.
Not legal advice. Verify the cited article against the signed agreement.