# Regulus search export

- Query: `77 FR 75699`
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- Exported: 2026-08-22T22:51:06.848Z

## 1. Pipeline Safety: Reporting of Exceedances of Maximum Allowable Operating Pressure

**Citation:** 77 FR 75699  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** Not stated / 2012-12-21

PHMSA is issuing this Advisory Bulletin to inform owners and operators of gas transmission pipelines that if the pipeline pressure exceeds maximum allowable operating pressure (MAOP) plus the build-up allowed for operation of pressure-limiting or control devices, the owner or operator must report the exceedance to PHMSA on or before the fifth day following the date on which the exceedance occurs. If the pipeline is subject to the regulatory authority of one of PHMSA's State Pipeline Safety Partners, the exceedance must also be reported to the applicable state agency.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2012/12/21/2012-30770/pipeline-safety-reporting-of-exceedances-of-maximum-allowable-operating-pressure>
- Source ID: `federal-register`
- SHA-256: `4adc427bee8e50b15f49dfc8753353385ce948836c591a2b978021b50e1c518f`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-2012-30770`
- Related records: 4