43 C.F.R. § 4300.20 How do I apply for a permit?
Title 43 - Public Lands: Interior
You must execute a completed application for a grazing permit (Form 4201–1) and file it in the BLM office with jurisdiction over the lands for which you are applying.
Title 43: Public Lands: Interior
PART 4300—GRAZING ADMINISTRATION; ALASKA; REINDEER; GENERAL
Applying for a Grazing Permit
§ 4300.20 How do I apply for a permit?

