# Air in gas.

- **operation:** document
- **citation:** 49 CFR 193.2423
- **title:** Air in gas.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 1999-10-01
- **summary:** Where incoming gas to liquefaction equipment contains air, each operator shall provide a means of preventing a flammable mixture from occurring under any operating condition.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-193-2423.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-193-2423.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-193-2423
- **source url:** https://www.govinfo.gov/app/details/CFR-1999-title49-vol3/CFR-1999-title49-vol3-sec193-2423
**body:**

Where incoming gas to liquefaction equipment contains air, each operator shall provide a means of preventing a flammable mixture from occurring under any operating condition.
- **truncated:** false
- **body characters:** 174