# Line markers for sour gas pipelines

- **operation:** document
- **citation:** Mich. Admin. Code R 460.20427
- **title:** Line markers for sour gas pipelines
- **source type:** regulation
- **agency:** Michigan Public Service Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-05-04
- **summary:** Rule 427. In addition to the requirements set forth in 49 C.F.R.§192.707, which is adopted by reference in R 460.20606, an operator of pipeline facilities used in the transportation of sour gas shall comply with both of the following provisions: (a) Line markers shall be placed and maintained as clo
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- **source url:** https://ars.apps.lara.state.mi.us/AdminCode/DownloadAdminCodeFile?FileName=R%20460.20101%20to%20R%20460.20606.pdf
**body:**

Rule 427. In addition to the requirements set forth in 49 C.F.R.§192.707, which is adopted by reference in R 460.20606, an operator of pipeline facilities used in the transportation of sour gas shall comply with both of the following provisions:

(a) Line markers shall be placed and maintained as close as practical over a sour gas pipeline and shall clearly identify the pipeline as a carrier of sour gas.

(b) Where practical, at least 1 line marker shall be visible from any location on the sour gas pipeline.

History: 2003 AACS.
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- **body characters:** 534