CFR›Title 10›Chapter II›Part 431›Subpart M›Subject Group Test Procedures ContainsSections 431.223–431.224CorpusDaily eCFRDisplayed edition2026-05-07Last updated2026-05-07 Sections 431.223 § 431.223 Materials incorporated by reference. 431.224 § 431.224 Uniform test method for the measurement of energy consumption for traffic signal modules and pedestrian modules. Previous Energy Conservation Standards Energy Conservation Standards