# Auxiliary power sources.

- **operation:** document
- **citation:** 49 CFR 193.2613
- **title:** Auxiliary power sources.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Each auxiliary power source must be tested monthly to check its operational capability and tested annually for capacity. The capacity test must take into account the power needed to start up and simultaneously operate equipment that would have to be served by that power source in an emergency.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-193-2613.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-193-2613.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-193-2613
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-193.2613
**body:**

Each auxiliary power source must be tested monthly to check its operational capability and tested annually for capacity. The capacity test must take into account the power needed to start up and simultaneously operate equipment that would have to be served by that power source in an emergency.
- **truncated:** false
- **body characters:** 294