43 C.F.R. § 3516.11 What kinds of permits or leases allow use permits?
Title 43 - Public Lands: Interior
Use permits are issued only in support of phosphate and sodium permits and leases. For phosphate permits and leases, BLM may issue you a use permit to use up to 80 acres. For sodium leases, use permits are limited to no more than 40 acres.
Title 43: Public Lands: Interior
PART 3500—LEASING OF SOLID MINERALS OTHER THAN COAL AND OIL SHALE
Subpart 3516—Use Permits
§ 3516.11 What kinds of permits or leases allow use permits?