Complex sentence: As a result of the Farmington disaster, the United States Congress passed the 1969 Coal Mine Safety and Health Act which strengthened safety standards, increased Federal mine inspections, and gave coal miners specific safety and health rights.
Split into simpler sentences: As a result of this tragedy, the United States Congress passed the 1969 Coal Mine Safety and Health Act. This law strengthened safety standards, increased Federal mine inspections, and gave coal miners specific safety and health rights.