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Regulatory Development and Retrospective Review Tracker

Interstate Transport Rule for the 2008 Ozone NAAQS

a.k.a. Interstate Transport Rule for the 2008 Ozone NAAQS

RIN: 2060-AS05 (What's this?)

Docket No.: Not yet available (What's this?)

Current Phase: Pre-Proposal (What's this?)

This proposed rule would address Clean Air Act requirements concerning the transport of air pollution across state boundaries. This action would address concerns raised by the D.C. Circuit in its decision remanding the Clean Air Interstate Rule and will potentially be influenced by the outcome of the Cross-State Air Pollution Rule litigation.

It is the next step for the EPA to move forward with the states to address interstate transport with respect to the 2008 ozone National Ambient Air Quality Standards. This rule proposes to define upwind states' obligations under the 2008 ozone standards to address transported air pollution affecting the eastern half of the U.S. However, this action will not address the particulate matter National Ambient Air Quality Standards.

NPRM: Published in FR00/0000 (projected)

Potential Effects

Federal Government - other agencies
Likely to be involved in the implementation of this rule.

Participate / Learn More Regulatory Review

Some of EPA's rulemakings undergo regulatory review (What's this?), as prescribed by Executive Order 12866 and coordinated by the Office of Management and Budget (OMB). The following list describes which of this rulemaking's stages have completed review and published in the Federal Register, if any, and provides links to the review documents where available. Consult the "Timeline" section of this Web page for the dates of each review.

Citations & Authorities

Code of Federal Regulations (CFR) Citation
40 CFR Part 51

Legal Authority
Clean Air Act


This site provides summaries of priority rulemakings and priority retrospective reviews of existing regulations. We update most of the site at the beginning of each month, though some data is updated more frequently if it is time sensitive. The information on this site is not intended to and does not commit EPA to specific conclusions or actions. For example, after further analysis, EPA may decide the effects of a rule would be different or it may decide to terminate a rulemaking.

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