CFR›Title 40›Chapter I›Part 272›Subpart ZZ ContainsSections 272.2550–272.2551CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart ZZ—Wyoming Sections 272.2550 § 272.2550 [Reserved] 272.2551 § 272.2551 Wyoming State-Administered Program: Final Authorization. Previous Z Subpart Z—Mississippi