The 1990 amendments to the Clean Air Act included a regulation that mandated:
A) significant reductions in sulfur dioxide emissions by all plants,even older ones.
B) significant reductions in sulfur dioxide emissions by newly constructed plants only.
C) replacement of all older power plants with new plants utilizing cleaner technology.
D) no further reductions in sulfur dioxide emissions since the goals established in 1970 had been achieved.

Question

Quizplus · Accepted Answer

The 1990 amendments to the Clean Air Act did mandate significant reductions in sulfur dioxide emissions, but it applied to all plants, even older ones. Option B is incorrect as it only applies to newly constructed plants. Option C is incorrect as it is not a requirement under the 1990 amendments. Option D is incorrect as the 1990 amendments did establish new goals for reducing emissions.

The 1990 Amendments to the Clean Air Act Included a Regulation