CFR›Title 10›Chapter II›Part 431›Subpart N›Subject Group Energy Conservation Standards ContainsSection 431.246CorpusDaily eCFRDisplayed edition2026-09-01Last updated2026-09-01 Sections 431.246 § 431.246 Energy conservation standards and their effective dates. Previous 431.242 § 431.242 Definitions concerning unit heaters.