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Regulatory Development and Retrospective Review Tracker

Rulemakings by Phase: Proposal

The rulemakings listed below are in the Proposal Phase.  Some rules in this phase are open for public comment.  See a list of rules currently open for public comment.  Also, EPA sometimes chooses to terminate a rulemaking that was in the Proposal Phase  in which case the rulemaking will no longer appear on this page.  Go to the Withdrawn page to learn more about these rulemakings.

TitleRINCan be sorted ascending
Effluent Guidelines and Standards for Oil and Gas Extraction Point Source Category2040-AF35
Fine Particulate Matter National Ambient Air Quality Standards: State Implementation Plan Requirements2060-AQ48
Formaldehyde Emission Standards for Composite Wood Products2070-AJ44
Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles - Phase 22060-AS16
Hazardous Waste Export-Import Revisions Rule2050-AG77
Interstate Transport Rule for the 2008 Ozone NAAQS2060-AS05
Model Trading Rules for Greenhouse Gas Emissions from Electric Utility Generating Units Constructed on or Before January 8, 20142060-AS47
Municipal Separate Storm Sewer System General Permit Remand Rule2040-AF57
Nanoscale Materials; Chemical Substances When Manufactured, Imported, or Processed as Nanoscale Materials; Reporting and Recordkeeping Requirements2070-AJ54
National Emission Standards for Hazardous Air Pollutants for Stationary Combustion Turbines- Petition to Delist2060-AK73
National Emission Standards for Hazardous Air Pollutants (NESHAP): Mercury Cell Chlor-Alkali Plants - Amendments2060-AN99
National Emission Standards for Hazardous Air Pollutants (NESHAP) Subpart W: Standards for Radon Emissions From Operating Uranium Mill Tailings: Review2060-AP26
Oil and Natural Gas Sector: Emission Standards for New and Modified Sources2060-AS30
Pesticides; Certification of Pesticide Applicators2070-AJ20
Proposed Greenhouse Gas Endangerment and Cause or Contribute Findings Under CAA Section 231for Aircraft, and ANPRM on the International Process for Reducing Aircraft GHGs and Future Standards2060-AS31
Remand of Halogenated Solvent Cleaning Final Residual Risk Rule2060-AP07
Review of the National Ambient Air Quality Standards for Lead2060-AQ44
Revision of 40 CFR Part 192--Health and Environmental Protection Standards for Uranium and Thorium Mill Tailings and Uranium In Situ Leaching Processing Facilities2060-AP43
Revisions to the National Oil and Hazardous Substances Pollution Contingency Plan; Subpart J Product Schedule Listing Requirements2050-AE87
Source Determination for Certain Emissions Units in the Oil and Natural Gas Sector2060-AS06
Supplemental Finding that it is Appropriate and Necessary to Regulate Hazardous Air Pollutants from Coal- and Oil-Fired Electric Utility Steam Generating Units2060-AS76

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Reg DaRRT focuses on priority rulemakings and retrospective reviews of existing regulations. EPA offers other regulatory tracking tools as well:

You may also find useful information on our Related Links page.

Withdrawn Rulemakings
Sometimes, EPA will choose to terminate a rulemaking. The Withdrawn page lists those rulemakings that have bee withdrawn in the past year.

See Rulemakings Open for Comment
Rulemakings remain in the Proposal Phase from the time the Notice of Proposed Rulemaking is published in the Federal Register until the Final Rule is published.  During a discreet portion of this time, a rule is usually open for comment.  See a list of those rules currently open for comment. From there, you can reach Regulations.gov, where you can comment electronically on the rule.


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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