Each operator of a coal mine who has not obtained authorization as
a self-insurer shall purchase a policy or enter into a contract with a
commercial insurance carrier or State agency. Pursuant to authority
contained in sections 422(a) and 423(b) and (c) of part C of title IV
of the Act, this subpart describes a number of provisions which are
required to be incorporated in a policy or contract of insurance
obtained by a coal mine operator for the purpose of meeting the
responsibility imposed upon such operator by the Act in respect of the
total disability or death of miners due to pneumoconiosis.