# Prevention of accidental ignition

- **operation:** document
- **citation:** Mich. Admin. Code R 460.20330
- **title:** Prevention of accidental ignition
- **source type:** regulation
- **agency:** Michigan Public Service Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-05-04
- **summary:** Rule 330. In addition to the requirements contained in 49 C.F.R.§192.751, which is adopted by reference in R 460.20606, before welding in or around a vault, pit, or other structure or area containing gas facilities, an operator shall make a thorough check to determine the possible presence of a comb
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20330.json
- **markdown:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20330.md
- **app url:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20330
- **source url:** https://ars.apps.lara.state.mi.us/AdminCode/DownloadAdminCodeFile?FileName=R%20460.20101%20to%20R%20460.20606.pdf
**body:**

Rule 330. In addition to the requirements contained in 49 C.F.R.§192.751, which is adopted by reference in R 460.20606, before welding in or around a vault, pit, or other structure or area containing gas facilities, an operator shall make a thorough check to determine the possible presence of a combustible gas mixture. Welding shall begin only when safe conditions are indicated.

History: 1998-2000 AACS.
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- **body characters:** 407