Cross-State Air Pollution Rule and Section 126 Petitions

The Environmental & Energy Law Program is tracking the environmental regulatory rollbacks of the Trump administration. Click here for the list of rules we are following. If you’re a reporter and would like to speak with an expert on this rule please email us.

Why it Matters

States rely on the Cross-State Air Pollution Rule (CSAPR) to protect their residents’ health by reducing smog and soot pollution from upwind sources in other states.

Current Status

Lawsuits continue over the Federal Implementation Plan (FIP) and Phase 2 emissions budgets for CSAPR. Meanwhile, downwind states seek deeper cuts in pollution from out-of-state sources. Connecticut, Delaware, and Maryland have sued the Environmental Protection Agency (EPA) for failure to act on their section 126 petitions.

Click here learn more about the history of this rule and actions that have been taken on it by the Trump Administration.

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