43 C.F.R. § 3601.13

How can I obtain mineral materials from Federal lands that have been withdrawn to aid a function of another Federal agency or of a State or local government agency?

Read at: eCFRecfr.gov CornellLII GovInfogovinfo.gov CasesGoogle Scholar

If you wish to obtain mineral materials from lands withdrawn to aid a function of another Federal agency or of a State or local government agency, you may apply to BLM. BLM will dispose of the mineral materials only with the consent of that agency.