Maintenance
- s 255.701 Scope.
- s 255.703 General.
- s 255.705 Transmission lines: patrolling.
- s 255.706 Transmission lines: leakage surveys.
- s 255.707 Line markers for mains and transmission lines.
- s 255.709 Transmission lines: recordkeeping.
- s 255.711 Transmission lines: general requirements for repair procedures.
- s 255.713 Transmission lines: permanent field repair of imperfections and damages.
- s 255.715 Transmission lines: permanent field repair of welds. Each weld that is unacceptable under section 255.241(c) of this Part must be repaired according to the following requirements:
- s 255.717 Transmission lines: permanent field repair of leaks.
- s 255.719 Transmission lines: testing of repairs.
- s 255.720 Distribution systems: leak repair.
- s 255.721 Distribution systems: patrolling.
- s 255.723 Distribution systems: leakage surveys and procedures.
- s 255.724 Distribution systems: service lines.
- s 255.725 Test requirements for reinstating service lines.
- s 255.726 Inactive service lines.
- s 255.727 Abandonment or inactivation of facilities.
- s 255.729 Compressor stations: procedures for gas compressor units.
- s 255.731 Compressor stations: inspection and testing of relief devices.
- s 255.732 Compressor stations: additional inspections.
- s 255.733 Compressor stations: isolation of equipment for maintenance or alterations.
- s 255.735 Compressor stations: storage of combustible materials.
- s 255.736 Compressor stations: gas detection.
- s 255.737 Pipe-type and bottle-type gas holders.
- s 255.739 Pressure-limiting and -regulating stations: inspection and testing.
- s 255.740 Pressure regulating, limiting, and overpressure protection - individual service lines directly connected to production, gathering, or transmission pipelines.
- s 255.741 Pressure-limiting and -regulating stations: telemetering or recording gauges.
- s 255.743 Pressure-limiting and -regulating stations: testing relief device.
- s 255.744 Service regulators and vents: inspection.
- s 255.745 Valve maintenance: transmission lines.
- s 255.747 Valve maintenance: distribution systems.
- s 255.748 Valve maintenance: service line valves.
- s 255.749 Vault maintenance.
- s 255.751 Prevention of accidental ignition.
- s 255.753 Caulked bell and spigot joints.
- s 255.755 Protecting cast iron pipelines.
- s 255.756 Replacement of exposed or undermined cast iron piping.
- s 255.757 Replacement of cast iron mains paralleling excavations.
- s 255.758 Joining plastic pipe by heat fusion; equipment maintenance and calibration.