EPA approves Delaware’s second maintenance plan for Philadelphia area air quality standards
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The Environmental Protection Agency has approved a plan from the state of Delaware that ensures air quality in New Castle County stays within federal limits for fine particulate matter. This approval covers the Delaware portion of the Philadelphia metropolitan area and extends compliance monitoring through 2034.
Why it matters: This action is largely administrative. It formally updates the federal record to reflect that Delaware has met its ongoing obligations for air quality monitoring in New Castle County. It does not introduce new regulations but confirms that existing measures are sufficient to keep the area in compliance with national air standards through 2034.
Who it affects
- The Delaware Department of Natural Resources and Environmental Control (DNREC)
This rule was published by the Environmental Protection Agency in the Federal Register; readers should consult the original document for full legal text and docket details.
Agency: Environmental Protection Agency
Source: Federal Register — read the official document