CFR›Title 10›Chapter II›Part 431›Subpart L›Subject Group Test Procedures ContainsSections 431.203–431.204CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 431.203 § 431.203 Materials incorporated by reference. 431.204 § 431.204 Uniform test method for the measurement of energy consumption of illuminated exit signs. Previous Energy Conservation Standards Energy Conservation Standards