AGs Press For ‘Legally Necessary’ PM Limits Tougher Than EPA Proposal

March 30, 2023
Democratic attorneys general (AGs) from 16 states are calling on EPA to adopt national ambient air quality standards (NAAQS) for fine particulate matter (PM2.5) even tougher than those the agency has proposed, a step they call “legally necessary,” foreshadowing possible litigation aimed at forcing tougher limits if EPA sticks to its plan. In their comment letter submitted ahead of a March 28 deadline for public input, AGs led by California AG Rob Bonta call on EPA to tighten the annual...

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