StacksVerified U.S. regulatory reference

40 CFR §1090.1560

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Except for pumps dedicated to heavy-duty vehicles, any pump installation used for dispensing natural gas into motor vehicles must have a nozzle and hose configuration that vents no more than 1.2 grams of natural gas during a complete refueling event for a vehicle that meets the requirements of 40 CFR 86.1813-17(f)(1).
  2. (b)Determine the amount of natural gas vented using calculations based on the geometric shape of the nozzle and hose.