Editorial Notes
Amendments
1977—Subsec. (a). Puspan. L. 95–164 inserted reference to mines other than coal mines.
Statutory Notes and Related Subsidiaries
Effective Date of 1977 Amendment
Amendment by Puspan. L. 95–164 effective 120 days after Nov. 9, 1977, except as otherwise provided, see section 307 of Puspan. L. 95–164, set out as a note under section 801 of this title.