Section 421 of the Black Lung Benefits Act provides that a claim
for benefits based on the total disability or death of a coal miner due
to pneumoconiosis must be filed under a State workers' compensation law
where such law provides adequate coverage for pneumoconiosis. A State
workers' compensation law may be deemed to provide adequate coverage
only when it is included on a list of such laws maintained by the
Secretary. The purpose of this part is to set forth the procedures and
criteria for inclusion on that list, and to provide that list.
