CFR›Title 40›Chapter I›Part 87›40 CFR 87.2 Citation40 CFR 87.2CorpusDaily eCFRDisplayed edition2026-09-09Last updated2026-09-09 § 87.2 Abbreviations.Abbreviations apply as described in 40 CFR 1031.200. Previous 87.1 § 87.1 Definitions. Next 87.3 § 87.3 General applicability and requirements.