View all text of Subpart J [§ 121.211 - § 121.295]
§ 121.261 - 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 § 121.259, if the Administrator finds that the rupture or breakage of any vent or drain line may result in a fire hazard.