Which federal agency does Defenders of Wildlife comment on most?

Defenders of Wildlife is most active at the Fish and Wildlife Service.

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Defenders of Wildlife

Unclaimed

Industry

Nonprofit management

Staff

170

1130 17th St NW, Washington, DC 20036

Phone

+1 202-682-9400

Website

defenders.org

Engagement overview

Defenders of Wildlife has filed 280 public comments across 190 dockets at 17 federal agencies, most actively at the Fish and Wildlife Service.

280

Comments filed

190

Dockets engaged

Agencies

Jun 25, 2026

Last filing

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Agency footprint

All agencies FWS64 EPA42 NOAA28 BOEM26 APHIS5 CEQ4 AMS3 USCG3 DOI2 FAA2 FEMA2 FHWA2 NPS2 USDA2 COE1 MMS1 USC1

Dockets · EPA (42)

sorted by most recent filing

EPARulemakingEPA-HQ-OAR-2025-0194

Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act

1 of your filingslast filed Oct 9, 2025245 co-filers

EPANonrulemakingEPA-HQ-OW-2018-0640

Florida Clean Water Act section 404 Assumption Request

3 of your filingslast filed Nov 4, 202032 co-filers

EPANonrulemakingEPA-HQ-OW-2020-0008

Comment on whether EPA’s approval of a Clean Water Act Section 404 program is non-discretionary for purposes of Endangered Species Act Section 7 Consultation

1 of your filingslast filed Jul 10, 202011 co-filers

EPANonrulemakingEPA-HQ-OPP-2019-0185

EPA Proposed Revised Method for National Level Endangered Species Risk Assessment Process for Biological Evaluations of Pesticides

1 of your filingslast filed Aug 21, 201919 co-filers

EPARulemakingEPA-HQ-OW-2018-0149

Revised Definition of “Waters of the United States”

1 of your filingslast filed Apr 17, 2019562 co-filers

EPANonrulemakingEPA-HQ-OPP-2018-0141

Biological Opinions for Pesticides Issued Under the Endangered Species Act

1 of your filingslast filed Aug 3, 201836 co-filers

EPANonrulemakingEPA-R10-OW-2017-0369

Proposal to Withdraw Proposed Determination to Restrict the Use of an Area as a Disposal Site; Pebble Deposit Area, Southwest Alaska

3 of your filingslast filed Mar 1, 201895 co-filers

EPARulemakingEPA-HQ-OAR-2017-0355

Repeal of Carbon Dioxide Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units; Emission Guidelines for Greenhouse Gas Emissions from Existing Electric Utility Generating Units; Revisions to Emission Guideline Implementing Regulations; Revisions to New Source Review Program

1 of your filingslast filed Jan 17, 2018295 co-filers

EPARulemakingEPA-HQ-OW-2017-0203

Definition of “Waters of the United States” – Recodification of Pre-Existing Rules

1 of your filingslast filed Oct 5, 2017431 co-filers

EPANonrulemakingEPA-HQ-OA-2017-0190

National Emission Standards for Hazardous Air Pollutants for Coal- and Oil-fired Electric Utility Steam Generating Units

1 of your filingslast filed Jan 21, 2016211 co-filers

EPARulemakingEPA-HQ-OAR-2013-0602

Standards of Performance for Greenhouse Gas Emissions from Existing Sources: Electric Utility Generating Units

1 of your filingslast filed Jan 7, 2015842 co-filers

EPARulemakingEPA-HQ-OW-2011-0880

Definition of "Waters of the United States" Under the Clean Water Act

1 of your filingslast filed Nov 28, 2014961 co-filers

EPARulemakingEPA-HQ-OAR-2013-0495

Review of Standards of Performance for Greenhouse Gas Emissions from New, Modified, and Reconstructed Stationary Sources: Electric Utility Generating Units Standards of Performance for Greenhouse Gas Emissions for New Stationary Sources: Electric Utility Generating Units (2015 Rule)

1 of your filingslast filed May 2, 2014250 co-filers

EPANonrulemakingEPA-HQ-OPP-2013-0744

Draft Memorandum of Understanding – Implementation of Executive Order 13186, “Responsibilities of Federal Agencies to Protect Migratory Birds”

1 of your filingslast filed Mar 20, 20142 co-filers

EPANonrulemakingEPA-HQ-OA-2012-0247

Public Comment Opportunity - Draft EPA Climate Change Adaptation Plan

1 of your filingslast filed Apr 11, 20139 co-filers

EPANonrulemakingEPA-HQ-OPP-2012-0442

Proposal for Enhancing Stakeholder Input in the Pesticide Registration Review and ESA Consultation Processes and Development of Economically and Technologically Feasible Reasonable and Prudent Alternatives

1 of your filingslast filed Oct 18, 201213 co-filers

EPANonrulemakingEPA-HQ-OPP-2012-0739

Public Participation Regarding the Use of Diphacinone to Control Black-tailed Prairie Dogs.

1 of your filingslast filed Sep 27, 20120 co-filers

EPANonrulemakingEPA-HQ-OPP-2008-0654

Special Docket: Draft Biological Opinions On Pacific Salmon And Steelhead Issued Under the Endangered Species Act.

4 of your filingslast filed May 3, 201254 co-filers

EPANonrulemakingEPA-HQ-OPP-2011-0909

USEPA/USFWS Endangered Species Consultation: Rozol

3 of your filingslast filed Feb 24, 20127 co-filers

EPANonrulemakingEPA-HQ-OW-2011-0409

Draft Guidance on Identifying Waters Protected by the Clean Water Act

1 of your filingslast filed Aug 9, 2011261 co-filers

EPANonrulemakingEPA-HQ-OECA-2010-0710

Federal Facilities Compliance Agreement Between the United States Environmental Protection Agency and the Tennessee Valley Authority

1 of your filingslast filed May 20, 20113 co-filers

EPANonrulemakingEPA-HQ-OPP-2010-0541

Notice of Receipt of a Petition to Suspend and Cancel All Registrations for the Soil Fumigant Iodomethane (Methyl Iodide)

1 of your filingslast filed May 20, 201114 co-filers

EPANonrulemakingEPA-HQ-OPP-2010-0753

Sodium Fluoroacetate Registration Review

1 of your filingslast filed Nov 30, 20104 co-filers

EPANonrulemakingEPA-HQ-OPP-2010-0584

Rozol® Ground Squirrel Bait, EPA File Symbol 7173-EON, Request for New Use for Anticoagulant, Chlorophacinone

2 of your filingslast filed Sep 21, 20101 co-filers

EPANonrulemakingEPA-HQ-OPP-2002-0262

Endosulfan: Updated Risk Assessments, Notice of Availability, and Solicitation of Usage Information

1 of your filingslast filed Sep 20, 201034 co-filers

EPARulemakingEPA-HQ-OW-2008-0517

Preliminary 2010 Effluent Guidelines Program Plan

1 of your filingslast filed Mar 2, 201042 co-filers

EPANonrulemakingEPA-HQ-ORD-2009-0816

A Framework for Categorizing the relative Vulnerability of Threatened and Endangered Species to Climate Change

1 of your filingslast filed Dec 29, 200913 co-filers

EPANonrulemakingEPA-HQ-OPP-2009-0684

Notice of Receipt of a Petition Requesting EPA to Cancel the Registration of Rozol Prairie Dog Bait

1 of your filingslast filed Dec 10, 200910 co-filers

EPANonrulemakingEPA-HQ-OPP-2009-0625

Notice of Receipt for New Use of Diphacinone on Prairie Dogs

2 of your filingslast filed Oct 23, 20093 co-filers

EPANonrulemakingEPA-HQ-OPP-2008-0615

Petitions Requesting Revocation of Tolerances and Cancellation of Uses for Endosulfan

2 of your filingslast filed Jul 29, 20099 co-filers

EPANonrulemakingEPA-HQ-OPP-2005-0162

Reregistration of Carbofuran

1 of your filingslast filed Sep 30, 200860 co-filers

EPANonrulemakingEPA-HQ-OW-2007-0282

Draft EPA/Army Guidance Regarding CWA Jurisdiction after Rapanos

1 of your filingslast filed Jan 29, 200874 co-filers

EPANonrulemakingEPA-HQ-OPP-2007-1088

Notice of FIFRA Scientific Advisory Panel Meeting; "Scientific Issues Associated with the Agency's Proposed Action under FIFRA 6(b) Notice of Intent to Cancel Carbofuran"

1 of your filingslast filed Jan 24, 20087 co-filers

EPANonrulemakingEPA-HQ-OW-2006-0020

Compensatory Mitigation for Losses of Aquatic Resources

1 of your filingslast filed Jul 7, 200694 co-filers

EPANonrulemakingEPA-HQ-OPP-2003-0237

Organophosphate Pesticides; Availability of Interim Risk Management Decision Documents for Methyl Parathion for Comment

1 of your filingslast filed Oct 29, 20043 co-filers

EPANonrulemakingEPA-HQ-OPP-2003-0241

Request to State Governments for Ecological Incident Reports; Proposed Pesticide Information Collection and Request for Comments

1 of your filingslast filed Mar 12, 20040 co-filers

EPANonrulemakingEPA-HQ-OPP-2002-0049

Rodenticides; Availability of Preliminary Comparative Ecological Assessment (The Comment Period for this Docket has been Extended Until May 30, 2003)

1 of your filingslast filed May 30, 20035 co-filers

EPARulemakingEPA-HQ-OECA-2004-0029

Environmental Impact Statement for the Final Rule for Environmental Impact Assessment of Nongovernmental Activities in Antarctica

1 of your filingslast filed Jul 20, 20014 co-filers

Attribution is name-based and imperfect. Firmographic data is third-party sourced and shown for demonstration. regulations.gov data is public record.