To amend the Federal Mine Safety and Health Act of 1977 to permit State administration and enforcement of Federal mine safety and health standards, to permit States to retain fines and forfeitures collected pursuant to such standards if the Secretary of the Interior approves a State plan pursuant to such Act, and for other purposes.

Amends the Federal Mine Safety and Health Act of 1977 to direct the Secretary of Labor to cooperate with State mine inspection and safety agencies. Requires States to submit proposed mine health and safety standards to the Secretary for approval. Requires the Secretary to grant approval if certain development and enforcement criteria are met.