CFR > Title 43 - Public Lands: Interior > SUBTITLE B—Regulations Relating to Public Lands > CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR (parts 1000 to 9260) > SUBCHAPTER H—RECREATION PROGRAMS (parts 8200 to 8360) > PART 8200—PROCEDURES > SUBPART 8223—Research Natural Areas (§8223.0-1 to §8223.1)