All lamps, extension lights and permissible portable illumination such as cap lamps and flashlights that are used for personal illumination underground shall be inspected by an authorized person at least once per week, and more often if necessary, to ensure safe operating conditions. Such equipment located at the surface shall be inspected by an authorized person at least once per month, and more often if necessary, to ensure safe operating conditions. Any defect found shall be corrected.
1966, c. 594, § 45.1-85; 1978, c. 118; 1993, c. 442; 1994, c. 28; 1999, c. 256.