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  1. Home
  2. Greenhouse Gas Reporting Program (GHGRP)
  3. For GHG Reporters
  4. Rulemaking Notices

Subpart W Rulemaking Resources

Read Current Rule

View Data Highlights

On this page:
  • GHGRP rulemaking notices
  • Waste Emissions Charge rulemaking notices

40 CFR Part 98.230
Federal Register Date Citation Action Description
5/14/2024 89 FR 42062 Final Rule

Revises subpart W (Petroleum and Natural Gas Systems), subpart C (General Stationary Fuel Combustion Sources) and subpart A (General Provisions) to address gaps in reporting of emissions data for specific sectors and establishes confidentiality determinations for new or substantially revised data elements.
Final Preamble and Rule
Corrections (8/19/2024)
Administrative Petitions and Responses
Subpart W Rule Fact Sheet (pdf) (176.29 KB)
Proposal Preamble and Rule
Rulemaking Docket
Slides from overview webinar

11/30/2016 81 FR 86490 Final Rule Revises subpart W (Petroleum and Natural Gas Systems) to add new monitoring methods consistent with the New Source Performance Standard for the oil and gas industry. Also finalizes emission factors for leaking equipment, and establishes confidentiality determinations for new or substantially revised data elements.
Final Preamble and Rule (PDF)(30 pp, 393K)
Response to Comments
Final Rule Fact Sheet
Proposed Preamble and Rule (PDF)(20 pp, 352K)
10/22/2015 80 FR 64262 Final Rule Amends subpart W (Petroleum and Natural Gas Systems) to establish first-time reporting requirements for onshore petroleum and natural gas gathering and boosting activities, onshore natural gas transmission pipelines, completions and workovers of oil wells with hydraulic fracturing, and well identification numbers. Establishes confidentiality determinations for new data elements.
Final Preamble and Rule (PDF)(38 pp, 562K)
Response to Comments
Fact Sheet
Notice: Extension of Public Comment Period (PDF)(2 pp, 199K)
Notice: Change in Public Hearing Date (PDF)(2 pp, 213K)
Proposed Preamble and Rule (PDF)(44 pp, 529K)
11/25/2014 79 FR 70352 Final Rule Amends subpart W (Petroleum and Natural Gas Systems) and subpart A (General Provisions) to revise certain calculation methods, monitoring and data reporting requirements, and terms and definitions. Establishes confidentiality determinations for new or substantially revised data elements.
Final Preamble and Rule (PDF)(75 pp, 1MB)
Response to Comments
Fact Sheet
Proposed Preamble and Rule (PDF)(68 pp, 937K)
10/24/2014 79 FR 63750 Final Rule Amends reporting and recordkeeping requirements and establishes an alternative electronic verification approach for 23 subparts to address concerns regarding public disclosure of business sensitive information while maintaining EPA’s ability to verify emissions and ensure compliance.
Final Preamble and Rule (PDF)(51 pp, 633K)
Response to Comments
Fact Sheet
Memorandum: List of ‘Inputs to Equations’ Data Elements Not To Be Reported
Proposed Preamble and Rule (PDF)(31 pp, 550K)
More Information
11/29/2013 78 FR 71904 Final Rule Updates global warming potentials (GWPs) to reflect IPCC AR4 values, and amends 27 subparts to improve and clarify reporting requirements. Establishes confidentiality determinations for new and revised data elements.
Final Preamble and Rule (PDF)(79 pp, 935K)
Correction Notice (PDF)(2 pp, 248K)
Response to Comments
Fact Sheet
Memo: Table of Final 2013 Revisions to the Greenhouse Gas Reporting Rule
Proposed Preamble and Rule (PDF)(77 pp, 909K)
05/01/2013 78 FR 25392 Final Rule Revises the deadline by which owners or operators of facilities subject to subpart W (Petroleum and Natural Gas Systems) must submit requests for use of best available monitoring methods (BAMM).
Final Preamble and Rule (PDF)(5 pp, 255K)
Response to Comments
Fact Sheet
Proposed Preamble and Rule (PDF)(2 pp, 203K)
Withdrawal of Direct Final Rule Notice (PDF)(1 pg, 219K)
Direct Final Rule (PDF)*(2 pp, 203K)
Direct Final Rule: Fact Sheet
Direct Final Rule: Cost Burden Memorandum
*The direct final rule received adverse comment and was subsequently withdrawn.
08/24/2012 77 FR 51477 Final Rule Revises subparts A (General Provisions), I (Electronics Manufacturing), L (Fluorinated Gas Production), W (Petroleum and Natural Gas Systems), and TT (Industrial Waste Landfills) to correct errors and improve clarity and flexibility.
Final Preamble and Rule (PDF)(19 pp, 462K)
Response to Comments
Fact Sheet
Proposed Preamble and Rule (PDF)(19 pp, 420K)
More Information
08/13/2012 77 FR 48072 Final Rule Establishes confidentiality determinations for most data elements to be reported under subparts I, W, DD, FF, II, QQ, RR, SS, TT, and UU; defers the deadline for reporting certain recently added data elements that are inputs to emission equations in subparts W, FF, and TT; finalizes amendments to subpart I to remove the requirement for a facility using Best Available Monitoring Methods (BAMM) to recalculate the previous reporting years’ emissions and resubmit to EPA.
Final Preamble and Rule (PDF)(88 pp, 287K)
Response to Comments
Fact Sheet
Notice: Extension of Public Comment Period (PDF)(1 pg, 193K)
Proposed Preamble and Rule (2/24/2012) (PDF)(23 pp, 261K)
Proposed Preamble and Rule (2/22/2012) (PDF)(17 pp, 212K)
Proposed Preamble and Rule (1/10/2012) (PDF)(19 pp, 230K)
More Information
12/23/2011 76 FR 80554 Final Rule Amends subparts A (General Provisions) and W (Petroleum and Natural Gas Systems) to clarify terms, calculation methods, and reporting requirements for subpart W.
Final Preamble and Rule (PDF)(42 pp, 552K)
Response to Comments
Fact Sheet
2011 Revisions Technical Support Document (Dec 2011)
2011 Revisions Economic Impact Analysis (Dec 2011)
Notice: Extension of Public Comment Period (PDF)(2 pp, 152K)
Proposed Preamble and Rule (09/09/2011) (PDF)(42 pp, 437K)
Proposed Preamble and Rule (08/04/2011) (PDF)(30 pp, 427K)
11/29/2011 76 FR 73866 Final Rule Amends subparts A, W, FF, II, OO, RR, and TT to clarify reporting requirements and correct technical and editorial errors.
Final Preamble and Rule (PDF)(25 pp, 341K)
Response to Comments
Fact Sheet
Proposed Preamble and Rule (PDF)(30 pp, 427K)
More Information
09/27/2011 76 FR 59533 Final Rule Revises the provisions for using Best Available Monitoring Methods (BAMM) for subpart W (Petroleum and Natural Gas Systems).
Final Preamble and Rule (PDF)(9 pp, 175K)
Response to Comments
Fact Sheet
Proposed Preamble and Rule (PDF)(8 pp, 212K)
More Information
04/25/2011 76 FR 22825 Final Rule Amends subpart W (Petroleum and Natural Gas Systems) to extend the deadline for submitting Best Available Monitoring Methods (BAMM) requests during the 2011 calendar year; extends the period during which some sources could automatically use BAMM.
Final Preamble and Rule (PDF)*(3 pp, 52K)
*EPA did not solicit comments for this notice and no response to comment document was prepared.
11/30/2010 75 FR 74458 Final Rule Adds subpart W (Petroleum and Natural Gas Systems) to 40 CFR Part 98.
Final Preamble and Rule (PDF)(59 pp, 670K)
Response to Comments
Proposed Rule (PDF)(43 pp, 326K)
Proposed Rule (4/10/2009)*
Proposed Preamble (4/10/2009)*
Technical Support Document: Petroleum and Natural Gas Systems
Economic Impact Assessment Subpart W Final Rule
*Subpart W was originally proposed in this rule, and then re-proposed in 4/12/2010

Waste Emissions Charge (WEC)

The Waste Emissions Charge (WEC) for methane applies to facilities reporting under subpart W of the GHGRP. This table provides a listing of Federal Register notices and links to more information for proposed and final rules related to the WEC.

Read the Final Rule

Federal Register Rulemaking Notices for the WEC
Federal Register Date Citation Action Description First reporting year impacted
11/18/2024 89 FR 91094 Final Rule

Establishes the WEC for facilities reporting subpart W (Petroleum and Natural Gas Systems) and details about how the charge will be implemented, including charge calculations and exemptions.
Final Rule Fact Sheet
Regulatory Impact Analysis
Response to Comments
Steps for Determining Waste Emissions Charge Applicability and Obligation (Graphic)
Final Preamble and Rule
Proposal Preamble and Rule
Rulemaking Docket

RY2024

Greenhouse Gas Reporting Program (GHGRP)

  • Find and Use GHGRP Data
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    • Supply, Underground Injection, and Geologic Sequestration of CO2
    • Fluorinated Greenhouse Gases
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      • Landfills and GHGRP
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  • Data Citation
Contact Us About GHG Reporting
Contact Us About GHG Reporting to ask a question, provide feedback, or report a problem.
Last updated on January 16, 2025
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