# 401 KAR 51:010: 401 KAR 51:010. Attainment status designations

> Kentucky · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R010

## Section

- **Citation:** 401 KAR 51:010
- **Heading:** 401 KAR 51:010. Attainment status designations
- **Jurisdiction:** Kentucky
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Kentucky Administrative Regulations / Title 401 (Energy and Environment Cabinet - Department for Environmental Protection) / Chapter 051 / 401 KAR 51:010

## Text

Section 1. Definitions. (1) "Rest of state" means the remainder of the state has been designated and identified on a county by county basis. (2) "Road" means a Kentucky route, a county road, a lane, or a U.S. route, highway, or interstate. (3) "Statewide" means the entire state has been designated on a county by county basis. Section 2. Attainment Status Designations. (1) The attainment status of areas of the Commonwealth of Kentucky with respect to the ambient air quality standards for carbon monoxide, lead, nitrogen oxides, ozone, particulate matter, and sulfur dioxide shall be as listed in Sections 4 through 10 of this administrative regulation. (2) Within sixty (60) days of revision by the U.S. Environmental Protection Agency (U.S. EPA) of a national ambient air quality standard, the cabinet shall review applicable data and submit to the U.S. EPA a revision to the attainment - nonattainment list pursuant to 42 U.S.C. 7407(d)(1). (3) A road, junction, or intersection of two (2) or more roads that delineates a nonattainment boundary for an area that is a portion of a county designated as nonattainment for ozone for any classification except marginal, shall include as nonattainment an area extending 750 feet from the center of the road, junction, or intersection. Section 3. Attainment Timetable. Primary and secondary ambient air quality standards shall be attained as expeditiously as practicable. Section 4. Attainment Status Designations for Carbon Monoxide (CO). 1971 Standard: Section 5. Attainment Status Designations for Lead (Pb). 2008 Standard: Section 6. Attainment Status Designations for Nitrogen Oxides (NO 2 ). (1) 1971 Annual Standard: (2) 2010 One (1) Hour Standard: Section 7. Attainment Status Designations for Ozone (O 3 ). (1) The 1971 One (1) Hour Standard was revoked effective June 15, 2005, for all areas in the Commonwealth of Kentucky
(CO). 1971 Standard: Section 5. Attainment Status Designations for Lead (Pb). 2008 Standard: Section 6. Attainment Status Designations for Nitrogen Oxides (NO 2 ). (1) 1971 Annual Standard: (2) 2010 One (1) Hour Standard: Section 7. Attainment Status Designations for Ozone (O 3 ). (1) The 1971 One (1) Hour Standard was revoked effective June 15, 2005, for all areas in the Commonwealth of Kentucky. The Cincinnati-Hamilton, Edmonson County, Huntington-Ashland, Lexington-Fayette, Louisville, Owensboro, and Paducah areas shall be considered maintenance areas for the one (1) hour national ambient air quality standards for the purposes of 40 C.F.R. Part 51, Subpart X. (2) 1997 Eight (8) Hour Primary and Secondary Standard: (3) 2008 Eight (8) Hour Primary and Secondary Standard: (4) 2015 Eight (8) Hour Primary and Secondary Standard: Section 8. Attainment Status Designations for PM 2.5 . (1) 1997 Annual Primary and Secondary Standard: (2) 2012 Annual Primary Standard: (3) 1997 Twenty-four (24) Hour Primary and Secondary Standard: (4) 2006 Twenty-four (24) Hour Primary and Secondary Standard: Section 9. Attainment Status Designations for Sulfur Dioxide (SO 2 ). (1) 1971 Primary and Secondary Standard: (2) 2010 Primary Standard: Section 10. Attainment Status Designations for Total Suspended Particulates (TSP). 1971 Standard:

## Nearby sections

- [401 KAR 51:001 401 KAR 51:001. Definitions for 401 KAR Chapter 51](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R001.md)
- [401 KAR 51:005 401 KAR 51:005. Purpose and general provisions](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R005.md)
- [401 KAR 51:010 401 KAR 51:010. Attainment status designations](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R010.md)
- [401 KAR 51:017 401 KAR 51:017. Prevention of significant deterioration of air quality](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R017.md)
- [401 KAR 51:052 401 KAR 51:052. Review of new sources in or impacting upon nonattainment areas](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R052.md)
- [401 KAR 51:150 401 KAR 51:150. NOx requirements for stationary internal combustion engines](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R150.md)
- [401 KAR 51:160 401 KAR 51:160. NOx requirements for large utility and industrial boilers](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R160.md)
- [401 KAR 51:170 401 KAR 51:170. NOx requirements for cement kilns](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R170.md)
- [401 KAR 51:180 401 KAR 51:180. NOx credits for early reduction and emergency](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R180.md)
- [401 KAR 51:190 401 KAR 51:190. Banking and trading NOx allowances](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R190.md)
- [401 KAR 51:195 401 KAR 51:195. NOx opt-in provisions](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R195.md)
- [401 KAR 51:210 401 KAR 51:210. CAIR NOx annual trading program](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R210.md)
- [401 KAR 51:220 401 KAR 51:220. CAIR NOx ozone season trading program](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R220.md)
- [401 KAR 51:230 401 KAR 51:230. CAIR SO2 trading program](https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R230.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_KY_KAR_T401_C051_R010. Check the current official text before relying on it. Not legal advice.