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EPA/OAR RIN: 2060-AU72 Publication ID: Fall 2021 
Title: National Emission Standards for Hazardous Air Pollutants: Primary Aluminum Reduction Plants Reconsideration 

On October 15, 2015, EPA published a rule titled “National Emission Standards for Hazardous Air Pollutants for the Primary Aluminum Reduction Plants” (80 FR 62390) which set new emissions limits for particulate matter (PM) for anode bake furnaces, paste production plants and five subcategories of potlines. On July 9, 2019, EPA received a petition from Intalco Aluminum LLC requesting that EPA initiate a rulemaking to revise the PM emissions limits for one of the potline subcategories (i.e., side-worked prebake potlines). The petitioner claims that, while the rule requires the compliance demonstration for these PM emissions limits be based on test data that represent a complete operating cycle, the underlying data used by EPA to establish the emissions limits was not test data representative of a complete operating cycle. EPA is evaluating this issue and accompanying data provided by the petitioner. Based on an internal, preliminary review, EPA thinks the petition has merit. The agency intends to review the submitted data and, if appropriate, propose revised PM emissions limits for this potline subcategory.

Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 63 subpart LLL   
Legal Authority: 42 U.S.C. 7412 Clean Air Act    42 U.S.C. 7607(d)(7)(B)   
Legal Deadline:  None
Action Date FR Cite
NPRM  06/00/2022 
Final Rule  07/00/2023 
Additional Information: .
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
Sectors Affected: 331313 Alumina Refining and Primary Aluminum Production 
RIN Data Printed in the FR: No 
Agency Contact:
Chuck French
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-02,
Research Triangle Park, NC 27711
Phone:919 541-7912
Fax:919 541-4991