49 C.F.R. § 195.438 Smoking or open flames.
Title 49 - Transportation
Each operator shall prohibit smoking and open flames in each pump station area and each breakout tank area where there is a possibility of the leakage of a flammable hazardous liquid or of the presence of flammable vapors.
Title 49: Transportation
PART 195—TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE
Subpart F—Operation and Maintenance
§ 195.438 Smoking or open flames.