CFR›Title 43›Subtitle B›Chapter II›Part 4600 ContainsSubparts 4600–4610CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 4600—LEASES OF GRAZING LAND—PIERCE ACT Subparts 4600 Subpart 4600—General Sections 4600.0-2–4600.0-3 4610 Subpart 4610—Procedures Sections 4610.1–4610.5 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. Previous 4300 Part 4300—Grazing Administration; Alaska; Reindeer; General Next 4700 Part 4700—Protection, Management, and Control of Wild Free-Roaming Horses and Burros