Subpart Q – Iron and Steel Production

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

Summary

The iron and steel production source category consists of facilities with any of the following processes:

  • Taconite iron ore processing.
  • Integrated iron and steel manufacturing (production of steel from iron ore or iron ore pellets).
  • Coke making not co-located with an integrated iron and steel manufacturing process.
  • Electric arc furnace (EAF) steelmaking not co-located with an integrated iron and steel manufacturing process.

Reporter Resources

Subpart Q Regulatory History

40 CFR Part 98.170
Federal Register Date Citation Action Description
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 (12/09/2016) (pdf) (87 pp, 801 KB)
Response to Comments (12/09/2016)
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 (01/15/2016) (pdf) (91 pp, 890 KB)
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 (10/24/2014) (pdf) (51 pp, 633 KB)
Response to Comments (12/11/2014)
Fact Sheet: Revisions to Reporting and Recordkeeping Requirements and Final Confidentiality Determinations under the Greenhouse Gas Reporting Program (pdf) (40.52 KB, Sep 2014)
Memorandum: List of ‘Inputs to Equations’ Data Elements Not To Be Reported
Proposed Preamble and Rule (09/11/2013) (pdf) (31 pp, 550 KB)
More Information on CBI for GHG Reporting
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 (11/29/2013) (pdf) (79 pp, 935 KB)
Correction Notice (01/22/2014) (pdf) (2 pp, 248 KB)
Response to Comments (11/22/2013)
Fact Sheet: 2013 Revisions and Confidentiality Determinations (pdf) (37.58 KB, Nov 2013)
Memo: Table of Final 2013 Revisions to the Greenhouse Gas Reporting Rule
Proposed Preamble and Rule (04/02/2013) (pdf) (77 pp, 909 KB)
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 (05/26/2011) (pdf) (37 pp, 330 KB)
Correction Notice (10/17/2011) (pdf) (6 pp, 167 KB)
Response to Comments (05/26/2011)
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 (07/27/2010) (pdf) (4 pp, 164 KB)
Proposed Preamble and Rule (07/07/2010) (pdf) (40 pp, 366 KB)
CBI Powerpoint Presentation (pdf) (95.58 KB)
10/28/2010 75 FR 66434 Final Rule Corrects technical and editorial errors, and clarifies rule provisions for subparts A, E, H, K, N, O, P, Q, S, V, Z, CC, EE, GG, HH, LL, MM, and NN.
Final Preamble and Rule (10/28/2010) (pdf) (47 pp, 376 KB)
Response to Comments (10/12/2010)
Proposed Preamble and Rule (06/15/2010) (pdf) (34 pp, 316 KB)
More Information for Final Rule: Technical Corrections (October 28, 2010)
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 (10/30/2009) (pdf) (260 pp, 1.4 MB)
Response to Public Comments- Subpart Q (pdf) (337.12 KB, 09/2009)
Regulatory Impact Analysis for the Mandatory Reporting of Greenhouse Gas Emissions Final Rule (pdf) (1.32 MB)
Subpart Q Technical Support Document- Iron and Steel Production (pdf) (472.39 KB, 08/28/2009)
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 13, 2025