The Senate narrowly rejected an amendment on January 22 that would have delayed a rule weakening the Environmental Protection Agency’s (EPA) New Source Review (NSR) program while the National Academy of Sciences evaluates its potential impact on air pollution and human health.
The final rule, set to take effect March 3, rolls back clean air protections through a series of exemptions to NSR, which requires older coal-fired power plants to add the latest anti-pollution machinery whenever they are substantially upgraded.