40 CFR § 1066.970
Refueling test for liquid fuels
June 9, 2020
Except as described in §1066.975, test vehicles for refueling emissions as described in 40 CFR 86.150-98, 86.151-98, 86.152-98, and 86.154-98. Keep records as described in 40 CFR 86.155-98.