Section 135.053. General additions [49 CFR 192.53].

Section 135.055. Steel pipe addition [49 CFR 192.55].

Section 135.125. Design of copper pipe addition [49 CFR 192.125].

Section 135.163. Compressor stations: design and construction additions [49 CFR 192.163].

Section 135.171. Compressor stations: additional safety equipment addition [49 CFR 192.171].

Section 135.173. Compressor stations: ventilation addition [49 CFR 192.173].

Section 135.181. Distribution line valves addition [49 CFR 192.181].

Section 135.183. Vaults: structural design requirements additions [49 CFR 192.183].

Section 135.187. Vaults: sealing, venting, and ventilation addition [49 CFR 192.187].

Section 135.189. Vaults: drainage and waterproofing additions [49 CFR 192.189].

Section 135.195. Protection against accidental overpressuring additions [49 CFR 192.195].

Section 135.197. Control of the pressure of gas delivered from high-pressure distribution systems additions [49 CFR 192.197].

Section 135.199. Requirements for design of pressure relief and limiting devices additions [49 CFR 192.199].

Section 135.204. Addition [49 CFR 192.204w].

Section 135.246. Addition [49 CFR 192.246w].

Section 135.279. Copper pipe addition [49 CFR 192.279].

Section 135.307. Inspection of materials addition [49 CFR 192.307].

Section 135.309. Repair of steel pipe addition [49 CFR 192.309].

Section 135.319. Installation of pipe in a ditch additions [49 CFR 192.319].

Section 135.321. Installation of plastic pipe additions [49 CFR 192.321].

Section 135.323. Casing addition [49 CFR 192.323].

Section 135.324. Addition [49 CFR 192.324w].

Section 135.325. Underground clearance addition [49 CFR 192.325].

Section 135.355. Customer meters and regulators: protection from damage additions [49 CFR 192.355].

Section 135.365. Service lines: location of valves addition [49 CFR 192.365].

Section 135.371. Service lines: steel addition [49 CFR 192.371].

Section 135.375. Service lines: plastic addition [49 CFR 192.375].

Section 135.377. Service lines: copper additions [49 CFR 192.377].

Section 135.457. External corrosion control: buried or submerged pipelines installed before August 1, 1971 addition [49 CFR 192.457].

Section 135.505. Strength test requirements for steel pipeline to operate at a hoop stress of 30 percent or more of SMYS addition [49 CFR 192.505].

Section 135.511. Test requirements for service lines addition [49 CFR 192.511].

Section 135.613. Continuing surveillance additions [49 CFR 192.613].

Section 135.614. Damage prevention program addition [49 CFR 192.614].

Section 135.621. Maximum allowable operating pressure: high-pressure distribution systems additions [49 CFR 192.621].

Section 135.623. Maximum allowable operating pressure: low-pressure distribution systems addition [49 CFR 192.623].

Section 135.629. Purging of pipelines addition [49 CFR 192.629].

Section 135.707. Line markers for mains and transmission lines addition [49 CFR 192.707].

Section 135.713. Transmission lines: permanent field repair of imperfections and damages addition [49 CFR 192.713].

Section 135.720. Addition [49 CFR 192.720w].

Section 135.722. Addition [49 CFR 192.722w].

Section 135.723. Distribution systems: leakage surveys additions [49 CFR 192.723].

Section 135.724. Addition [49 CFR 192.724w].

Section 135.727. Abandonment or deactivation of facilities addition [49 CFR 192.727].

Section 135.735. Compressor stations: storage of combustible materials addition [49 CFR 192.735].

Section 135.741. Pressure limiting and regulating stations: telemetering or recording gauges addition [49 CFR 192.741].

Section 135.744. Addition [49 CFR 192.744w].

Section 135.747. Valve maintenance: distribution systems addition [49 CFR 192.747].

Section 135.751. Prevention of accidental ignition addition [49 CFR 192.751].

Section 135.753. Caulked bell and spigot joints addition [49 CFR 192.753].