# Indiana Gas Company — Pipeline Safety Interpretation

**Citation:** PI-92-024  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1992-06-29

PI-92-024 response to Indiana Gas Company concerning 192.197.

## Document text

<<<PAGE 1>>>

June 29, 1992
Mr. Ronald J. Boes
Manager of Gas Systems
Standards & Procedures
Indiana Gas Company
1630 North Meridian Street
Indianapolis, IN 46202-1496
Dear Mr. Boes:
This responds to your letter of April 17, 1992, to Mr. Richard Sanders of the Transportation
Safety Institute in which you ask if the 3/8" external line on the Sprague CL34-2 IMR regulator is
a "static or control line" as set forth in Section 192.197.
The "static or control line" in Section 192.197(a)(6) is a line that runs from the regulator to the
downstream side of the regulator used to communicate that pressure to the regulator. The 3/8"
external tubing on the Sprague CL34-2 IMR is not a static or control line, but a supply line
supplying high pressure gas from the inlet side of the regulator to the pilot to establish the set
point; i.e., the outlet pressure of the regulator.
I trust that this has adequately responded to your question.
Sincerely,
Cesar De Leon
Director
Regulatory Programs
Office of Pipeline Safety
jt
192.197/92-06-29

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1992/PI92024.pdf>
- Source ID: `phmsa`
- SHA-256: `c7176dab80411d622f31a7a9424cdf0a44b61dac6707cb24b953999b64330843`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T11:55:11.101Z
- Document slug: `phmsa-interpretation-pi-92-024`

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