CFR›Title 40›Chapter I›Part 1066›Subpart J›Subject Group Evaporative and Refueling Emission Test Procedures for Motor Vehicles›40 CFR 1066.965 Citation40 CFR 1066.965CorpusDaily eCFRDisplayed edition2026-09-30Last updated2026-09-30 § 1066.965 Hot soak test.Test vehicles for hot soak emissions as described in 40 CFR 86.138-96. Previous 1066.960 § 1066.960 Running loss test. Next 1066.970 § 1066.970 Refueling test for liquid fuels.