StacksVerified U.S. regulatory reference

30 CFR §56.18020

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No employee shall be assigned, or allowed, or be required to perform work alone in any area where hazardous conditions exist that would endanger his safety unless he can communicate with others, can be heard, or can be seen.