43 C.F.R. § 4120.5-2
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—
[60 FR 9965, Feb. 22, 1995, as amended at 71 FR 39505, July 12, 2006]