StacksVerified U.S. regulatory reference

30 CFR §57.4502

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Battery-charging stations shall be ventilated with a sufficient volume of air to prevent the accumulation of hydrogen gas.
  2. (b)Smoking, use of open flames, or other activities that could create an ignition source shall be prohibited at the battery charging station during battery charging.
  3. (c)Readily visible signs prohibiting smoking or open flames shall be posted at battery-charging stations during battery charging.