The employer shall ensure at a constructions site of a building or other construction work that, -
(a) where building workers employed in a compressed air environment in a tunneling work are required to remain at the work site for one hour or more after de-compression from pressure exceeding one bar, adequate and suitable facilities are provided for such building workers to rest;
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(b) every man-lock, medical-lock and any other facility inside these locks at an excavation or tunneling work is maintained in a clean state and in good repairs ;
(c) a first-aid room is provided and is readily available at a construction site of a tunneling work;
(d) each man-lock attendant station is provided with a first-aid box at a construction site of a tunneling work.