EPA Backlog of Air Plans Remains Despite Progress, Watchdog Says

June 14, 2021, 4:43 PM

The EPA is struggling to clear a backlog of state air pollution mitigation plans, increasing the risk that some local agencies aren’t doing enough to meet healthy air requirements, the agency’s watchdog said Monday.

The Environmental Protection Agency has yet to take action on 39% of active State Implementation Plan submissions, according to an Office of Inspector General report. Such plans, known as SIPs, are a state’s blueprint for mitigating air pollution and reaching attainment for six criteria air pollutants under National Ambient Air Quality Standards.

A SIP is considered backlogged if the EPA takes longer than a year ...

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