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Subpart A—General14

Subpart B—Materials10

Subpart C—Pipe Design14

Subpart D—Design of Pipeline Components36

Subpart E—Welding of Steel in Pipelines10

Subpart F—Joining of Materials Other Than by Welding9

Subpart G—General Construction Requirements for Transmission Lines and Mains16

Subpart H—Customer Meters, Service Regulators, and Service Lines19

Subpart I—Requirements for Corrosion Control26

Subpart J—Test Requirements10

Subpart K—Uprating4

Subpart L—Operations26

Subpart M—Maintenance34

Subpart N—Qualification of Pipeline Personnel5

Subpart O—Gas Transmission Pipeline Integrity Management26

Subpart P—Gas Distribution Pipeline Integrity Management (IM)8

Regulationcurrent

49 CFR 192.123

[Reserved]

Current as of 2026-08-18 Government source

eCFR editorial compilationAuthoritative but unofficial

View source

PI-77-023

Central Plastics Company — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-77-001

Carl J. Stokes — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-76-0117

Pipeline Safety Interpretation PI-76-0117

192.123 · interpreted by

Guidance

PI-76-065

American Society of Mechanical Engineers — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-75-0114

Luke Ernst and Associates, Inc. — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-75-056

Luke Ernst and Associates, Inc — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-75-012

San Diego Gas & Electric Company — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-74-014

Florida Public Service Commission — Pipeline Safety Interpretation

192.123(b) · interpreted by

Guidance

PI-74-005

Alabama Public Service Commission — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-74-0102

Alabama Public Service Commission — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-72-0102

Albert Switzer & Associates, Inc. — Pipeline Safety Interpretation

192.123 · interpreted by

Guidance

PI-71-0124

R&G Sloane Manufacturing Company, Inc. — Pipeline Safety Interpretation

192.123 · interpreted by

PHMSA GT.2022.01

2022 Gas Transmission IA Question Set

DC.DP.PIPEDESGEN.P — 192.123, 192.123(a), 192.123(b), 192.123(c), 192.123(d), 192.123(e), 192.123(f) (+5 more questions) · examined by inspection

Inspection

PHMSA GT.2021.01

2021 Gas Transmission IA Question Set

DC.DP.PIPEDESGEN.P — 192.123, 192.123(a), 192.123(b), 192.123(c), 192.123(d), 192.123(e), 192.123(f) (+5 more questions) · examined by inspection

Permit

PHMSA-RSPA-2004-18757

Columbia Gas Transmission — Pipeline Special Permit

192.123 · special permit cites

Permit

PHMSA State Waiver, New York, 1995-09-07

State of New York Department of Public Service — State Waiver

192.123(a) · state waiver cites