Subpart OO – Suppliers of Industrial Greenhouse Gases

This page provides resources for subpart OO reporters, including implementation information as well as supporting documents for relevant rulemakings.

Summary

Subpart OO applies to any facility that (1) produces fluorinated greenhouse gases (GHGs), fluorinated heat transfer fluids (HTFs), or nitrous oxide (N2O); (2) destroys 25,000 mt CO2e or more of fluorinated GHGs or fluorinated HTFs annually; or (3) imports or exports industrial GHGs with annual bulk amounts of fluorinated GHGs, fluorinated HTFs, N2O, and CO2 that, collectively, are equivalent to 25,000 mt CO2e or more.

Reporter Resources

Subpart OO Regulatory History

s/pkg/FR-2016-01-15/pdf/2015-32753.pdf">Proposed Preamble and Rule (PDF)(91 pp, 890K)

40 CFR Part 98.360
Federal Register Date Citation Action Description
4/25/2024 89 FR 31802 Final Rule

Updates global warming potentials (GWPs), expands the GHGRP to new source categories, and revises the requirements for certain sectors to improve the data collected and program implementation.
Final Preamble and Rule (4/2024) (pdf) (3.4 MB)
Response to Comments 2024 (pdf) (5.05 MB)
Final Rule Fact Sheet (April 2024) (pdf) (343.73 KB)
Fact Sheet about Updated GWPs (pdf) (166.87 KB)
Supplemental Preamble and Rule (5/22/2023) (pdf) (1 MB)
Proposed Preamble and Rule (6/21/2022) (pdf) (2.2 MB)
Rulemaking Docket
12/09/2016 81 FR 89188 Final Rule Revises 29 subparts to streamline implementation, improve data quality, provide flexibility, and clarify the rule. Establishes confidentiality determinations for new or substantially revised data elements. Final action in response to a Petition for Reconsideration.
Final Preamble and Rule (12/2016) (pdf) (87 pp, 801 KB)
Response to Comments (12/2016)
Fact Sheet: 2015 Revisions and Confidentiality Determinations (pdf) (209.54 KB, Nov 2016)
Memo: Table of Final 2015 Revisions to the Greenhouse Gas Reporting Rule
Proposed Preamble and Rule (1/15/2016) (pdf) (91 pp, 890 KB)
12/11/2014 79 FR 73750 Final Rule Adds chemical-specific and default global warming potentials (GWPs) for fluorinated greenhouse gases (F-GHGs) and fluorinated heat transfer fluids (F-HTFs) to the general provisions of the Greenhouse Gas Reporting Rule, makes conforming changes to subpart I (Electronics Manufacturing) and subpart L (Fluorinated Gas Production), amends certain provisions of subpart L, and establishes confidentiality determinations for certain reporting requirements of subpart L.
Correction Notice (12/2014) (pdf) (1 p, 230 KB)
Final Preamble and Rule (11/2014) (pdf) (48 pp, 796 KB)
Response to Comments (12/2014)
Fact Sheet: Addition of Global Warming Potentials to the General Provisions and Amendments and Confidentiality Determinations for Fluorinated Gas Production (pdf) (44.97 KB, Nov 2014) (45 KB)
Notice of Data Availability (pdf) (6 pp, 251 KB)
Proposed Preamble and Rule (7/31/2014) (pdf) (21 pp, 370 KB)
Proposed Rule (11/19/2013) (pdf) (24 pp, 400 KB)
Proposed Preamble and Rule (9/11/2013) (pdf) (31 pp, 550 KB)
Proposed Preamble and Rule (1/10/2012) (pdf) (19 pp, 222 KB)
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 (11/2013) (pdf) (79 pp, 935 KB)
Correction Notice (11/2013) (pdf) (2 pp, 248 KB)
Response to Comments (11/2013)
Fact Sheet: 2013 Revisions and Confidentiality Determinations (pdf) (37.58 KB, Nov 2013) (37.6 KB)
Memorandum: Table of Final 2013 Revisions to the Greenhouse Gas Reporting Rule (pdf) (1.02 MB, Sept 2013) (1 MB)
Proposed Preamble and Rule (4/2/2013) (pdf) (77 pp, 909 KB)
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 (11/2011) (pdf) (25 pp, 341 KB)
Response to Comments (11/2011)
Fact Sheet: 2011 Technical Corrections, Clarifying, and Other Amendments to Certain Provisions of the Mandatory Reporting of Greenhouse Gases Rule (pdf) (48.02 KB, Nov 2011)
Proposed Preamble and Rule (8/4/2011) (pdf) (30 pp, 390 KB)
More Information on 2011 Technical Corrections
05/26/2011 76 FR 30782 Final Rule Finalizes confidentiality determinations for 34 subparts for data elements that are not inputs to emissions equations. Finalizes amendments to 40 CFR 2 governing CBI obtained under 40 CFR 98.
Final Preamble and Rule (5/2011) (pdf) (37 pp, 330 KB)
Correction Notice (10/2011) (pdf) (6 pp, 167 KB)
Response to Comments (5/2011)
Fact Sheet: Final Confidentiality Determinations for Data Collected Under the Greenhouse Gas Reporting Program and Amendments to Special Rules Governing Certain Information Obtained Under the Clean Air Act (pdf) (43.28 KB, May 2011)
Final Data Category Assignments and Confidentiality Determinations for Part 98 Reporting Elements (pdf) (1.76 MB)
Proposed Preamble and Rule (7/27/2010) (pdf) (4 pp, 164 KB)
Proposed Preamble and Rule (7/07/2010) (pdf) (40 pp, 366 KB)
CBI Powerpoint Presentation (pdf) (95.58 KB)
12/17/2010 75 FR 79092 Final Rule Corrects technical and editorial errors, and clarifies rule provisions for subparts A, C, D, F, G, P, V, X, Y, AA, NN, OO and PP.
Final Preamble and Rule (12/2010) (pdf) (81 pp, 667 KB)
Fact Sheet: Revisions of Certain Provisions of the Mandatory Reporting of Greenhouse Gases Rule (pdf) (97.8 KB, Nov 2010)
Proposed Preamble and Rule (8/11/2010) (pdf) (72 pp, 478 KB)
More Information on 12/2010 Final Rule
10/30/2009 74 FR 56260 Final Rule Finalizes the first 30 subparts of 40 CFR Part 98, comprising subparts A, C, D, E, F, G, H, K, N, O, P, Q, R, S, U, V, X, Y, Z, AA, BB, CC, EE, GG, HH, JJ, LL, MM, NN, OO, and PP.
Final Preamble and Rule (pdf) (260 pp, 1.4 MB)
Response to Comments Document: Subpart OO — Suppliers of Industrial GHGs (pdf) (281.5 KB)
Regulatory Impact Analysis for the Mandatory Reporting of Greenhouse Gas Emissions Final Rule (pdf) (1.32 MB)
Technical Support Document: Suppliers of Industrial Greenhouse Gases (pdf) (102.66 KB)
Technical Support Document: Bulk Imports and Exports of Fluorinated Gases (pdf) (45.31 KB)
Technical Support Document: Imports of Fluorinated Greenhouse Gases in Products (pdf) (67.09 KB)
Proposed Mandatory Reporting of Greenhouse Gases Rule (pdf) (3.03 MB)
Proposed Mandatory Reporting of Greenhouse Gases Preamble (pdf) (3.71 MB)

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Last updated on June 10, 2025