282. For each mine comprising underground workings, the operator must deliver to the Minister, on or before the 1st of February each year, a complete set of the plans contemplated in sub-paragraphs a, b and c of subsection 1 of section 281 for all workings existing in the mine on the 31st of December of the preceding year, or a complete set of certified copies of such plans made to a scale approved by the Minister.
1965 (1st sess.), c. 34, s. 253; 1968, c. 36, s. 22.