# Alabama Public Service Commission — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-71-003
- **title:** Alabama Public Service Commission — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1971-01-04
- **effective on:** Not available
- **summary:** PI-71-003 response to Alabama Public Service Commission concerning 192.625.
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- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1971/PI71003.pdf
**body:**

<<<PAGE 1>>>

January 4, 1971
Mr. James B. Williams
Utilities Engineer
Alabama Public Service Commission
P.O. Box 881
Montgomery, Alabama 36102
Dear Mr. Williams:
This is in reply to your letter of December 22, 1970, concerning 49 CFR, Section 192.625,
odorization of gas.
If the line involved is operated at 20% or more of SMYS, under 49 CFR, Section 192.625 as
amended, there is requirement for odorization. If it is operated at less than 20% SMYS you may
initiate a waiver proceeding under Section 3(e) of the Natural Gas Pipeline Safety Act.
Thank you for your interest in pipeline safety.
Sincerely,
/signed/
Joseph C. Caldwell
Director, Acting
Office of Pipeline Safety
DB/dal/192.625
71-01-04.2
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