Code of Federal Regulations (alpha)

CFR /  Title 14  /  Part 125  /  Sec. 125.159 Vent and drain lines.

All vent and drain lines, and their fittings, that are located in a designated fire zone must, if they carry flammable fluids or gases, comply with Sec. 125.157, if the Administrator finds that the rupture or breakage of any vent or drain line may result in a fire hazard.