PSC 135.125   Design of copper pipe addition [49 CFR 192.125].
PSC 135.163   Compressor stations: design and construction additions [49 CFR 192.163].
PSC 135.171   Compressor stations: additional safety equipment addition [49 CFR 192.171].
PSC 135.173   Compressor stations: ventilation addition [49 CFR 192.173].
PSC 135.181   Distribution line valves addition [49 CFR 192.181].
PSC 135.183   Vaults: structural design requirements additions [49 CFR 192.183].
PSC 135.187   Vaults: sealing, venting, and ventilation addition [49 CFR 192.187].
PSC 135.189   Vaults: drainage and waterproofing additions [49 CFR 192.189].
PSC 135.195   Protection against accidental overpressuring additions [49 CFR 192.195].
PSC 135.197   Control of the pressure of gas delivered from high-pressure distribution systems additions [49 CFR 192.197].
PSC 135.199   Requirements for design of pressure relief and limiting devices additions [49 CFR 192.199].
PSC 135.206   Addition [49 CFR 192.206w].
PSC 135.246   Addition [49 CFR 192.246w].
PSC 135.279   Copper pipe addition [49 CFR 192.279].
PSC 135.307   Inspection of materials addition [49 CFR 192.307].
PSC 135.309   Repair of steel pipe addition [49 CFR 192.309].
PSC 135.319   Installation of pipe in a ditch additions [49 CFR 192.319].
PSC 135.321   Installation of plastic pipe additions [49 CFR 192.321].
PSC 135.323   Casing addition [49 CFR 192.323].
PSC 135.324   Addition [49 CFR 192.324w].
PSC 135.325   Underground clearance addition [49 CFR 192.325].
PSC 135.355   Customer meters and regulators: protection from damage additions [49 CFR 192.355].
PSC 135.365   Service lines: location of valves addition [49 CFR 192.365].
PSC 135.371   Service lines: steel addition [49 CFR 192.371].
PSC 135.375   Service lines: plastic addition [49 CFR 192.375].
PSC 135.377   Service lines: copper additions [49 CFR 192.377].
PSC 135.457   External corrosion control: buried or submerged pipelines installed before August 1, 1971 addition [49 CFR 192.457].
PSC 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].
PSC 135.511   Test requirements for service lines addition [49 CFR 192.511].