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(3) The level of lighting at any place at a task position referred to in section 6.8 that may be measured for the purposes of section 6.3 shall not be less than one quarter of the level of lighting prescribed by this Part for that task position.
(3) Where, because of the nature of the location or of the work being done, a portable ladder cannot be securely fastened in place, it shall, while being used, be sloped so that the base of the ladder is not less than one-quarter and not more than one-third of the length of the ladder from a point directly below the top of the ladder and at the same level as the base.
