The Surface Mining Control and Reclamation Act of 1977 (SMCRA) is the primary federal law that regulates the environmental effects of coal mining in the United States. SMCRA created two programs: one for regulating active coal mines and a second for reclaiming abandoned mine lands. (19 h 34 m, 2 abr 1977 ano – 21 h 24 m, 12 jul 1977 ano)
Adicionado na linha do tempo:
Data:
19 h 34 m, 2 abr 1977 ano
21 h 24 m, 12 jul 1977 ano
~ 3 months and 11 days