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Federal Register / Vol. 86, No. 232 / Tuesday, December 7, 2021 / Proposed Rules TABLE 1EMISSION LIMIT CHANGES AND CLOSURES AT THE BURNS HARBOR PLANTContinued Unit name
Former fuel
Former limit
Revised fuel
Slab Mill Soaking Pits: 23 of 32 horizontally discharged.
Slab Mill Soaking Pits Set of 4 vertically discharged.
160 inch Plate Mill Continuous Reheat Furnace No. 1 and Boiler No. 1.
110 inch Plate Mill Furnaces No. 1 and 2

Blast furnace gas or natural gas.
Blast furnace or natural gas.

24 lb/hr

Closed

0.0 lb/hr.

4 lb/hr

Closed

0.0 lb/hr.

160 inch Plate Mill I and O Furnaces No. 4
and 5.
160 inch Plate Mill I and O Furnaces No. 6
and 7.
160 inch Plate Mill I and O Furnace No. 8

29.9 lb/hr;
mmBtu.
44.1 lb/hr;
mmBtu.
27.4 lb/hr;
mmBtu.
27.4 lb/hr;
mmBtu.
0.0 lb/hr.

Power Station Boilers No. 8, 9, 10, 11, and 12.

299 lb/hr; 1.96 lb/
mmBtu.
441 lb/hr; 1.96 lb/
mmBtu.
274 lb/hr; 1.96 lb/
mmBtu.
274 lb/hr; 1.96 lb/
mmBtu.
176 lb/hr; 1.96 lb/
mmBtu.
2,798 lb/hr; 1.45 lb/
mmBtu.

lotter on DSK11XQN23PROD with PROPOSALS1

III. CAA Section 110l Section 110l of the CAA provides that State submissions cannot be approved as SIP revisions if they interfere with applicable requirements concerning attainment and reasonable further progress. The Burns Harbor plant is located in Porter County, which is designated attainment/unclassifiable for the 2010 1-hour SO2 standard 86 FR
16055, March 26, 2021. EPA is proposing to find that the overall reductions in allowable SO2 emissions in IDEMs March 31, 2021 revised rule offset the effect of increasing the limit on the blast furnace gas flare. The rule revisions, which reflect the units that have new, lower emission limits and the closed units that no longer emit SO2, result in a reduction in total allowable SO2 emissions of 2,265.6 lb/hr. The increased allowable flare emissions are estimated at 8.89 lb/hr. The net result is an overall allowable SO2 emissions decrease of 2,256.7 lb/hr. The flare limit has been increased to allow the Burns Harbor plant operational flexibility, as the flare is a necessary safety device. In addition, the improved compliance and testing protocol will greatly improve the accuracy of the actual SO2 emissions calculations for blast furnace gas combustion. This is because having more accurate SO2 emissions information should help the Burns Harbor plant personnel properly evaluate and demonstrate its blast furnace flare compliance status. EPA
believes that the March 31, 2021 revised rule 326 IAC 74141 will not adversely affect Porter Countys maintenance of the 2010 1-hour SO2
standard. EPA proposes to find that IDEMs March 31, 2021 submittal is consistent with CAA section 110l.

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IV. What action is EPA taking?
EPA is proposing to approve the March 31, 2021 SIP revision request for Indianas SO2 rule 326 IAC 74141
for the Burns Harbor plant. If approved, this revision would satisfy a provision in a Federal Settlement Agreement. It would also strengthen the Indiana SO2
SIP by lowering SO2 emission limits and adding improved SO2 compliance test procedures for the Burns Harbor plant.
V. Incorporation by Reference In this rule, EPA is proposing to include in a final EPA rule regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, EPA is proposing to incorporate by reference Indiana rule 326 IAC 74141, effective March 20, 2021. EPA has made, and will continue to make, these documents generally available through www.regulations.gov and at the EPA
Region 5 Office please contact the person identified in the FOR FURTHER
INFORMATION CONTACT section of this preamble for more information.
VI. Statutory and Executive Order Reviews Under the CAA, the Administrator is required to approve a SIP submission that complies with the provisions of the CAA and applicable Federal regulations.
42 U.S.C. 7410k; 40 CFR 52.02a.
Thus, in reviewing SIP submissions, EPAs role is to approve state choices, provided that they meet the criteria of the CAA. Accordingly, this action merely approves state law as meeting Federal requirements and does not impose additional requirements beyond those imposed by state law. For that reason, this action:
Is not a significant regulatory action subject to review by the Office of Management and Budget under
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Closed

Revised limit
1.96 lb/
1.96 lb/
1.96 lb/
1.96 lb/

2,378 lb/hr; 1.45 lb/
mmBtu.

Executive Orders 12866 58 FR 51735, October 4, 1993 and 13563 76 FR 3821, January 21, 2011;
Does not impose an information collection burden under the provisions of the Paperwork Reduction Act 44
U.S.C. 3501 et seq.;
Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act 5
U.S.C. 601 et seq.;
Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 Pub. L. 1044;
Does not have federalism implications as specified in Executive Order 13132 64 FR 43255, August 10, 1999;
Is not an economically significant regulatory action based on health or safety risks subject to Executive Order 13045 62 FR 19885, April 23, 1997;
Is not a significant regulatory action subject to Executive Order 13211 66 FR
28355, May 22, 2001;
Is not subject to requirements of Section 12d of the National Technology Transfer and Advancement Act of 1995 15 U.S.C. 272 note because application of those requirements would be inconsistent with the CAA; and Does not provide EPA with the discretionary authority to address, as appropriate, disproportionate human health or environmental effects, using practicable and legally permissible methods, under Executive Order 12898
59 FR 7629, February 16, 1994.
In addition, the SIP is not approved to apply on any Indian reservation land or in any other area where EPA or an Indian tribe has demonstrated that a tribe has jurisdiction. In those areas of Indian country, the rule does not have tribal implications and will not impose
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