# Nondestructive testing

- **operation:** document
- **citation:** Mich. Admin. Code R 460.20306
- **title:** Nondestructive testing
- **source type:** regulation
- **agency:** Michigan Public Service Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-05-04
- **summary:** Rule 306. (1) In addition to the nondestructive testing required under 49 C.F.R. §192.243(d), which is adopted by reference in R 460.20606, an operator shall also ensure that 100% of each day's field butt welds are nondestructively tested over their entire circumferences in the following locations: 
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20306.json
- **markdown:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20306.md
- **app url:** https://regulus.evalyn.ai/document/mi-admin-code-r-460-20306
- **source url:** https://ars.apps.lara.state.mi.us/AdminCode/DownloadAdminCodeFile?FileName=R%20460.20101%20to%20R%20460.20606.pdf
**body:**

Rule 306. (1) In addition to the nondestructive testing required under 49 C.F.R. §192.243(d), which is adopted by reference in R 460.20606, an operator shall also ensure that 100% of each day's field butt welds are nondestructively tested over their entire circumferences in the following locations:

(a) Regulating stations.

(b) Measuring stations.

(c) Compressor stations.

(2) If it is not practical to test 100% of each day's field butt welds as required by subrule (1) of this rule, then an operator shall nondestructively test at least 90% of each day's field butt welds selected at random at the locations specified in subrule (1) of this rule.

History: 1998-2000 AACS; 2010 AACS; 2019 AACS.
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