Code of Federal Regulations Title 43. Public Lands:  Interior § 43.3436.2–1 Qualified exchange proponents

(1) Own coal west of the 100th Meridian, west longitude, underlying or near an alluvial valley floor where surface coal mining operations are prohibited by section 510(b) (5) of the Surface Mining Control and Reclamation Act because such operations would interrupt farming or materially damage the quantity and quality of the water in surface or underground water systems that would supply the alluvial valley floor;  and

(2) Are not entitled to continue any existing surface coal mining operation pursuant to the first proviso to section 510(b) (5) of the Surface Mining Control and Reclamation Act.