---
kind: "section"
citation: "40 C.F.R. § 52.1273"
title: "40"
number: "52.1273"
heading: "Control strategy: Ozone."
url: "https://uscodex.org/cfr/40/52.1273"
---

# §52.1273. Control strategy: Ozone.

- (a) **Determination of attainment.** The EPA has determined, as of June 3, 2016, that based on 2012 to 2014 ambient air quality data, the Memphis, TN-MS-AR 2008 ozone Marginal nonattainment area has attained the 2008 ozone NAAQS. Therefore, the EPA has met the requirement pursuant to CAA [section 181(b)(2)(A)](/cfr/40/181.md?p=b-2-A) to determine, based on the area's air quality data as of the attainment date, whether the area attained the standard. The EPA also determined that the Memphis, TN-MS-AR nonattainment area will not be reclassified for failure to attain by its applicable attainment date under [section 181(b)(2)(A)](/cfr/40/181.md?p=b-2-A).
- (b) **Disapproval.** The state implementation plan (SIP) revision submitted on September 3, 2019, addressing Clean Air Act [section 110(a)(2)(D)(i)(I)](/cfr/40/110.md?p=a-2-D-i-I) (prongs 1 and 2) for the 2015 ozone national ambient air quality standards (NAAQS) is disapproved.

## Notes

### Amendments

[81 FR 26709, May 4, 2016, as amended at 88 FR 9383, Feb. 13, 2023]

### Authority

Authority: 42 U.S.C. 7401 et seq.

### Amendments

[40 FR 5521, Feb. 6, 1975]

### Amendments

[81 FR 26709, May 4, 2016, as amended at 88 FR 9383, Feb. 13, 2023]