(b) Where the illumination is apparently inadequate, the COTP may require verification by instrument of the levels of illumination. On a horizontal plane 3 feet above the barge deck or walking surface, illumination must measure at least:
(1) 5.0 foot candles at transfer connection points; and
(2) 1.0 foot candle in transfer operations work areas.
(c) For small or remote facilities, the COTP may authorize operations with an adequate level of illumination provided by the vessel or by portable means.
(d) Lighting must be located or shielded so as not to mislead or otherwise interfere with navigation on the adjacent waterways.