# Maximum allowable operating pressure of pipeline containing cast-iron pipe

- **operation:** document
- **citation:** Mich. Admin. Code R 460.20322
- **title:** Maximum allowable operating pressure of pipeline containing cast-iron pipe
- **source type:** regulation
- **agency:** Michigan Public Service Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-05-04
- **summary:** Rule 322. The requirement contained in 49 CFR 192.621(a)(3), which is adopted by reference in R 460.20606, is superseded by the requirement that a person shall not operate any segment of a pipeline containing cast-iron pipe that has unreinforced bell and spigot joints at a pressure of more than 10 p
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20322.json
- **markdown:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20322.md
- **app url:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20322
- **source url:** https://ars.apps.lara.state.mi.us/AdminCode/DownloadAdminCodeFile?FileName=R%20460.20101%20to%20R%20460.20606.pdf
**body:**

Rule 322. The requirement contained in 49 CFR 192.621(a)(3), which is adopted by reference in R 460.20606, is superseded by the requirement that a person shall not operate any segment of a pipeline containing cast-iron pipe that has unreinforced bell and spigot joints at a pressure of more than 10 psig.

History: 1998-2000 AACS; 2022 AACS.
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- **body characters:** 341