US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 1065 — ENGINE-TESTING PROCEDURESSubpart I — Testing With Oxygenated Fuels1065.85040 C.F.R. § 1065.850Calculations.Last amended: 2016Year: 2026Length: 29 wordsOfficial source Cite as 40 C.F.R. § 1065.850 (2026)Use the calculations specified in § 1065.665 to determine THCE or NMHCE and the calculations specified in 40 CFR 1066.635 to determine NMOG. [79 FR 23813, Apr. 28, 2014]Cross-references to the CFR1065.66540:1066.635Previous40 C.F.R. § 1065.845