The Interior secretary touted the revised rules as eliminating "unnecessary regulatory burdens while maintaining safety." But environmental groups said the move demonstrates oil industry influence.
A number of government agencies work closely with the industries they are charged with regulating. The issue surfaced after Boeing's 737 Max planes had to be grounded by the FAA.
Five years after the Justice Department vowed to hold people accountable for the largest oil spill in U.S. history, its prosecution of BP executives has foundered.