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National Parks Conservation Association

Unclaimed
Industry
Nonprofit Organization Management
Staff
350
HQ
Washington, DC
Phone
+1 800-628-7275
Website
npca.org

Engagement overview

National Parks Conservation Association has filed 97 public comments across 77 dockets at 13 federal agencies, most actively at the Environmental Protection Agency.

97
Comments filed
77
Dockets engaged
13
Agencies
Jul 7, 2026
Last filing

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Dockets · EPA (40)

sorted by most recent filing
EPARulemakingEPA-HQ-OAR-2025-3297

Revision of Tier 4 Phase-in Schedule for Light-Duty and Medium-Duty Vehicles

1 of your filingslast filed Jul 7, 202634 co-filersRIN 2060-AW96
EPARulemakingEPA-HQ-OAR-2025-1477

Visibility Protection: Regional Haze State Plan Requirements Rule Revision

1 of your filingslast filed Nov 3, 202524 co-filers
EPARulemakingEPA-R08-OAR-2024-0607

Air plan partial approval and partial disapproval; Colorado; regional haze plan for the second implementation.

1 of your filingslast filed Sep 19, 20254 co-filers
EPARulemakingEPA-HQ-OAR-2025-0194

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

2 of your filingslast filed Aug 26, 2025245 co-filers
EPARulemakingEPA-HQ-OAR-2025-0124

Repeal of Greenhouse Gas Emissions Standards for Fossil Fuel-Fired Electric Generating Units

2 of your filingslast filed Aug 21, 2025101 co-filers
EPARulemakingEPA-R04-OAR-2022-0786

North Carolina Regional Haze SIP

1 of your filingslast filed Sep 20, 20242 co-filers
EPARulemakingEPA-HQ-OAR-2023-0292

California Air Resources Board ACCII Waiver Request

1 of your filingslast filed Feb 28, 202431 co-filers
EPARulemakingEPA-HQ-OAR-2023-0072

New Source Performance Standards for GHG Emissions from New and Reconstructed EGUs; Emission Guidelines for GHG Emissions from Existing EGUs; and Repeal of the Affordable Clean Energy Rule

1 of your filingslast filed Aug 10, 2023329 co-filers
EPARulemakingEPA-HQ-OAR-2022-0829

Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles

1 of your filingslast filed Jul 7, 2023112 co-filers
EPARulemakingEPA-HQ-OAR-2018-0794

National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units - Additional Post-Promulgation Actions

2 of your filingslast filed Jun 26, 2023129 co-filers
EPARulemakingEPA-HQ-OAR-2022-0985

Greenhouse Gas Emissions Standards for Heavy-Duty Engines and Vehicles-Phase 3

1 of your filingslast filed Jun 22, 202394 co-filers
EPANonrulemakingEPA-HQ-OAR-2022-0723

Reducing Greenhouse Gas Emissions from New and Existing Fossil Fuel-Fired Electric Generating Units

1 of your filingslast filed Mar 30, 202316 co-filers
EPARulemakingEPA-HQ-OAR-2015-0072

Review of the National Ambient Air Quality Standards for Particulate Matter

4 of your filingslast filed Mar 6, 2023245 co-filers
EPARulemakingEPA-HQ-OAR-2021-0317

Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review

2 of your filingslast filed Feb 6, 2023188 co-filers
EPARulemakingEPA-HQ-OAR-2019-0055

Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards

1 of your filingslast filed May 18, 2022153 co-filers
EPARulemakingEPA-HQ-OAR-2021-0668

Federal Implementation Plan Addressing Regional Ozone Transport for the 2015 Primary Ozone National Ambient Air Quality Standard

1 of your filingslast filed Apr 26, 2022117 co-filers
EPANonrulemakingEPA-HQ-OA-2021-0403

Draft FY 2022-2026 EPA Strategic Plan

1 of your filingslast filed Nov 16, 202134 co-filers
EPARulemakingEPA-HQ-OAR-2021-0208

Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions Standards

1 of your filingslast filed Sep 29, 202157 co-filers
EPANonrulemakingEPA-HQ-OAR-2021-0295

Reducing Emissions of Methane and Other Air Pollutants from the Oil and Natural Gas Sector: Request for Information

1 of your filingslast filed Aug 2, 202120 co-filers
EPANonrulemakingEPA-HQ-OW-2018-0640

Florida Clean Water Act section 404 Assumption Request

2 of your filingslast filed Nov 6, 202032 co-filers
EPARulemakingEPA-HQ-OAR-2018-0279

Review of the National Ambient Air Quality Standards for Ozone

2 of your filingslast filed Oct 5, 202062 co-filers
EPARulemakingEPA-HQ-OAR-2020-0044

Increasing Consistency and Transparency in Considering Benefits and Costs in the Clean Air Act Rulemaking Process

1 of your filingslast filed Aug 4, 202077 co-filers
EPARulemakingEPA-HQ-OA-2018-0259

Strengthening Transparency in Regulatory Science

5 of your filingslast filed May 28, 2020230 co-filers
EPARulemakingEPA-R08-OAR-2019-0354

Finding of Failure To Attain and Reclassification of Denver Area for the 2008 Ozone National Ambient Air Quality Standard

1 of your filingslast filed Sep 9, 20198 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 Mar 6, 2019250 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

2 of your filingslast filed Oct 11, 2018295 co-filers
EPARulemakingEPA-HQ-OAR-2017-0548

Air Quality Designations and Classifications for the 2015 Ozone Standards

1 of your filingslast filed Feb 8, 201838 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

1 of your filingslast filed Oct 26, 201795 co-filers
EPARulemakingEPA-HQ-OW-2017-0203

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

2 of your filingslast filed Oct 6, 2017431 co-filers
EPANonrulemakingEPA-HQ-OA-2017-0190

Evaluation of Existing Regulations

1 of your filingslast filed May 16, 2017481 co-filers
EPARulemakingEPA-HQ-OAR-2015-0531

Protection of Visibility: Amendments to Requirements for State Plans

2 of your filingslast filed Jun 28, 201639 co-filers
EPARulemakingEPA-HQ-OAR-2013-0685

PSD and NSR – Major Source Determination for Oil and Gas Extraction Facilities

1 of your filingslast filed Dec 15, 201551 co-filers
EPARulemakingEPA-HQ-OAR-2010-0505

Oil and Natural Gas Sector -- New Source Performance Standards, National Emission Standards for Hazardous Air Pollutants, and Control Techniques Guidelines

1 of your filingslast filed Dec 15, 2015202 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 Dec 6, 2014842 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 22, 2014961 co-filers
EPANonrulemakingEPA-R10-OW-2014-0505

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

1 of your filingslast filed Sep 24, 201463 co-filers
EPARulemakingEPA-HQ-OAR-2008-0699

Review of the National Ambient Air Quality Standards for Ozone

1 of your filingslast filed Mar 27, 2014465 co-filers
EPANonrulemakingEPA-HQ-OW-2011-0409

Draft Guidance on Identifying Waters Protected by the Clean Water Act

1 of your filingslast filed Jul 26, 2011261 co-filers
EPARulemakingEPA-HQ-OAR-2006-0888

Refinements of Increment Modeling Procedures

1 of your filingslast filed Jul 23, 200715 co-filers
EPARulemakingEPA-HQ-OAR-2001-0017

Review of the National Ambient Air Quality Standards (NAAQS) for Particulate Matter (PM) Legacy Docket ID #: A-2000-19

1 of your filingslast filed Mar 31, 2005230 co-filers

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