43 CFR 4120.5-2: -2 Cooperation with Tribal, state, county, and Federal agencies.

Insofar as the programs and responsibilities of other agencies and units of government involve grazing upon the public lands and other lands administered by the Bureau of Land Management, or the livestock which graze thereon, the Bureau of Land Management will cooperate, to the extent consistent with applicable laws of the United States, with the involved agencies and government entities. The authorized officer will cooperate with Tribal, state, county, and Federal agencies in the administration of laws and regulations relating to livestock, livestock diseases, sanitation, and noxious weeds, including—

(a) State cattle and sheep sanitary or brand boards in control of stray and unbranded livestock, to the extent such cooperation does not conflict with the Wild Free-Roaming Horse and Burro Act of 1971 (16 U.S.C. 1331 et seq.);

(b) County or other local weed control districts in analyzing noxious weed problems and developing control programs for areas of the public lands and other lands administered by the Bureau of Land Management; and

(c) Tribal, state, county, or local government-established grazing boards in reviewing range improvements and allotment management plans on public lands.