CFR›Title 10›Chapter II›Part 431›Subpart B›Subject Group Labeling ContainsSections 431.31–431.32CorpusDaily eCFRDisplayed edition2026-08-12Last updated2026-08-12 Sections 431.31 § 431.31 Labeling requirements. 431.32 § 431.32 Preemption of State regulations. Previous Energy Conservation Standards Energy Conservation Standards Next Test Procedures, Materials Incorporated and Methods of Determining Efficiency Test Procedures, Materials Incorporated and Methods of Determining Efficiency