49 C.F.R. § 193.2911 Security lighting.
Title 49 - Transportation
Where security warning systems are not provided for security monitoring under §193.2913, the area around the facilities listed under §193.2905(a) and each protective enclosure must be illuminated with a minimum in service lighting intensity of not less than 2.2 lux (0.2 ftc ) between sunset and sunrise.
Title 49: Transportation
PART 193—LIQUEFIED NATURAL GAS FACILITIES: FEDERAL SAFETY STANDARDS
Subpart J—Security
§ 193.2911 Security lighting.