Federal Register - August 17, 2021
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Source: Federal Register
45884
Federal Register / Vol. 86, No. 156 / Tuesday, August 17, 2021 / Rules and Regulations
In both the table and the figure, model predictions without and with SA are essentially identical. Thus, based on EPAs analysis, the Agency concludes that the error referenced by the
commenter was not in the CAMX model code that EPA used for the RCU
modeling.
For the reasons above, EPA disagrees with the commenters assertions regarding EPAs section 110l analysis
for Tennessees good neighbor obligations for the 2008 ozone NAAQS, and EPA is confident that the CAMX
modeling used in the RCU and to support this action is reliable.
TABLE 5MODEL-PREDICTED MAXIMUM DAILY 8-HOUR OZONE CONCENTRATIONS ppb WITHOUT AND WITH SA FOR THE
MONTH OF JULY AT THE STRATFORD, CONNECTICUT RECEPTOR SITE
Month
khammond on DSKJM1Z7X2PROD with RULES
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
Day
2023 without SA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
38.945
33.380
42.748
58.685
45.056
75.488
61.284
50.325
28.097
34.460
30.646
64.362
43.699
49.537
59.426
58.222
68.067
77.420
32.556
36.040
64.457
72.682
37.790
47.433
82.696
40.812
48.118
62.982
52.004
60.485
42.559
2023 with SA
38.945
33.380
42.748
58.685
45.056
75.488
61.283
50.325
28.097
34.460
30.646
64.362
43.699
49.537
59.426
58.222
68.067
77.421
32.556
36.040
64.457
72.682
37.790
47.433
82.696
40.812
48.118
62.982
52.004
60.485
42.559
Comment B10: A commenter identifies a number of regulations and policies that have either been rolled back or are proposed to be rolled back and expresses concern that the noninterference analysis did not account for the status of these rollbacks. The commenter states that air quality in the region has shown deterioration and movement towards nonattainment of the various NAAQS due to the rollbacks.
Also, the commenter asserts that impacts from as far away as California or New York could impact air in Tennessee. The commenter also concludes that there are emissions increases attributable to the rollbacks and that they should be taken into account to accurately assess air quality prior to removal of the I/M programs from the SIP.
Response B10: EPA does not agree with the commenters assertion that Tennessee should have or could have accounted for the final or proposed rollbacks identified by the commenter.
As described above, Tennessee used the latest available information when the SIP revision was developed with EPAs MOVES2014b model and associated technical and policy guidance,35 and the SIP revisions new on-road mobile source inventory was based on the EPAs vehicle and fuel standard rulemakings that are relevant for criteria pollutants.
With respect to a number of the rollbacks that the commenter directly asserts could be considered to have an impact on the Tennessee airshed, the commenter did not provide any documents or citations, therefore, in
some cases, it is not entirely clear what changes the commenter is referring to.
However, based on the changes that EPA believes the commenter to be concerned with, EPA disagrees that the changes will impact Tennessee air quality. For example, the rule titled Oil and Natural Gas Sector: Emission Standards for New, Reconstructed, and Modified Sources Review, 85 FR 57018
September 14, 2020, was disapproved under the Congressional Review Act,36
and the fuel volatility waivers under the rule titled Modifications to Fuel Regulations To Provide Flexibility for E15; Modifications to RFS RIN Market Regulations, 84 FR 26980 June 10, 2019, were vacated by the D.C. Circuit.
See Am. Fuel & Petrochemical Manufacturers v. EPA, No. 191124, 2021 WL 2755032, at 7 D.C. Cir. July
and with STA bottom; both maps use the same 0
to 80 ppb scale for depicting concentrations.
35 See EPAs July 2014 Policy Guidance on the Use of MOVES2014 for State Implementation Plan
Development, Transportation Conformity, and Other Purposes hereinafter MOVES 2014
Guidance. This document is available at https
nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=
P100K4EB.pdf.
36 See, e.g., White House signing statement at https www.whitehouse.gov/briefing-room/
statements-releases/2021/06/30/bills-signed-s-j-res13-s-j-res-14-s-j-res-15/.
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