Subpart W Rulemaking Resources
| Federal Register Date | Citation | Action | Description |
|---|---|---|---|
| 5/19/2025 | 90 FR 21225 |
Final Rule |
Removes subpart A requirements that were included in the November 18, 2024 Waste Emissions Charge final rule and applicable to subpart W reporters from the Code of Federal Regulations. |
| 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. |
| 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)
On March 14, 2025, a joint Congressional resolution disapproved the 2024 Final Waste Emissions Charge Rule. This regulation no longer has any force of law and is not in effect, and facilities will not be required to submit their WEC filings by September 2, 2025. EPA is currently evaluating options and obligations for implementing Clean Air Act section 136(c-g) and will provide additional information to the regulated community at an appropriate time.
| Federal Register Date | Citation | Action | Description | First reporting year impacted |
|---|---|---|---|---|
| 5/19/2025 | 90 FR 21225 |
Final Rule |
Removes subpart A requirements that were included in the November 18, 2024 Waste Emissions Charge final rule and applicable to subpart W reporters from the Code of Federal Regulations. |
2024 |
| 11/18/2024 | 89 FR 91094 | Final Rule |
The 2024 Final Waste Emissions Charge Rule and supporting materials are provided below for informational purposes only. This rule is no longer in effect as a result of a joint Congressional resolution (see note above). |
N/A |