CFR›Title 40›Chapter IX›Part 1900 ContainsSections 1900.1–1900.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1900—FEDERAL PERMITTING IMPROVEMENT Sections 1900.1 § 1900.1 Definitions. 1900.2 § 1900.2 FAST-41 sectors. Authority42 U.S.C. 4370m et seq.Source86 FR 1287, Jan. 8, 2021, unless otherwise noted.