Code of Federal Regulations Title 43. Public Lands:  Interior § 43.3601.6 Policy

(a) To make mineral materials available unless it is detrimental to the public interest to do so;

(b) To sell mineral material resources at not less than fair market value;

(c) To permit Federal, State, Territorial, and local government entities and non-profit organizations free use of these materials for qualified purposes;

(d) To protect public land resources and the environment and minimize damage to public health and safety during the exploration for and the removal of such minerals;

(e) To prevent unauthorized removal of mineral materials;  and

(f) To require purchasers and permittees to account for all removals of mineral materials.