Unverified50% confidenceFactExact time
Since the 1990 Clean Air Act Amendments, the United States has implemented continuously tightening controls on power plant NOx emissions through the Acid Rain Program, the NOx Budget Trading Program, and the Cross-State Air Pollution Rule (CSAPR).
1
Sources
50%
Confidence
Long-term
Relevance
10/21/2026
First Seen
Sources
Related Entities
Related Claims
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