CFR›Title 43›Subtitle B›Chapter II›43 CFR Part 4600 Citation43 CFR Part 4600ContainsSubparts Subpart 4600–Subpart 4610CorpusDaily eCFRDisplayed edition2026-09-08Last updated2026-09-08 PART 4600—LEASES OF GRAZING LAND—PIERCE ACT Subparts Subpart 4600 Subpart 4600—General Subpart 4610 Subpart 4610—Procedures Authority48 Stat. 1270; 43 U.S.C. 315a.Source35 FR 9546, June 13, 1970, unless otherwise noted. Redesignated at 61 FR 29031, June 7, 1996.