# In-Line inspection of pipelines.

- **operation:** document
- **citation:** 49 CFR 195.591
- **title:** In-Line inspection of pipelines.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** When conducting in-line inspection of pipelines required by this part, each operator must comply with the requirements and recommendations of API Std 1163, ASNT ILI-PQ, and NACE SP0102 (all incorporated by reference, see § 195.3). An in-line inspection may also be conducted using tethered or remote-
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-195-591.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-195-591
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-195.591
**body:**

When conducting in-line inspection of pipelines required by this part, each operator must comply with the requirements and recommendations of API Std 1163, ASNT ILI-PQ, and NACE SP0102 (all incorporated by reference, see § 195.3). An in-line inspection may also be conducted using tethered or remote-control tools provided they generally comply with those sections of NACE SP0102 that are applicable.

[Amdt. 195-117, 90 FR 40766, Aug. 21, 2025]
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