# Compliance and training.

- **operation:** document
- **citation:** 49 CFR 175.20
- **title:** Compliance and training.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition, air carriers must comply with all applicable hazardous materials training requirement
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-175-20.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-175-20.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-175-20
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-175.20
**body:**

An air carrier may not transport a hazardous material by aircraft unless each of its hazmat employees involved in that transportation is trained as required by subpart H of part 172 of this subchapter. In addition, air carriers must comply with all applicable hazardous materials training requirements in 14 CFR part 121 and 135.
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- **body characters:** 329