# Pre-duty use.

- **operation:** document
- **citation:** 49 CFR 199.219
- **title:** Pre-duty use.
- **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 operator shall prohibit a covered employee from using alcohol within four hours prior to performing covered functions, or, if an employee is called to duty to respond to an emergency, within the time period after the employee has been notified to report for duty. No operator having actual knowl
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-199-219.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-199-219.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-199-219
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-199.219
**body:**

Each operator shall prohibit a covered employee from using alcohol within four hours prior to performing covered functions, or, if an employee is called to duty to respond to an emergency, within the time period after the employee has been notified to report for duty. No operator having actual knowledge that a covered employee has used alcohol within four hours prior to performing covered functions or within the time period after the employee has been notified to report for duty shall permit that covered employee to perform or continue to perform covered functions.
- **truncated:** false
- **body characters:** 571