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46.—(1) The mine operator shall ensure that suitable and sufficient artificial lighting is provided in every part of the mine below ground where persons work or pass.
(2) The duty in paragraph (1) shall not apply in any part of the mine where artificial lighting is unnecessary because of the amount of light emitted by personal lamps or for any other reason.
(3) The mine operator shall ensure that suitable and sufficient emergency lighting is provided in every place above ground at a mine where a person is likely to be exposed to significant risk in the event of a failure of artificial lighting.
(4) If it is not reasonably practicable to comply with the duty in paragraph (3), the mine operator shall ensure that persons at work in that place are provided with a personal lamp.