...............**~.~** r.,; "'"' Steven L. Beshear Governor 

### Energy and Environment Cabinet Department for Environmental Protection Division for Air Quality EPA.:giGJON #4 A:"t'LANTA, GA Leonard K. Peters Secretary

Ms. Gwen Keyes Fleming Regional Administrator U.S. EPA, Region 4 Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW Atlanta, GA 30303-8960 DearMs. Fleming, 200 Fair Oaks Lane, 1st Floor· Frankfort, Kentucky 40601-1403 air.ky.gov
June 27, 2012

The Kentucky Division for Air Quality is requesting that the EPA propose approval ofthe following proposed administrative regulations by parallel processing for the purpose ofexpeditingthe adoption ofthese regulations into the Kentucky SIP. The amendments to these administrative regulations revise definitions to reflect the New Source Review (NSR) program at the federal level. This regulatory action establishes significant impact levels, significant monitoring concentrations, and baseline datesforthe implementation of the PM2.5 NAAQS. Also, the amendments adopt the significant emissions rates to determine NSR applicability for PM25 and**P~h 5**  precursors. The amendments were filed with the Legislative Research Commission on June 14,2012, and copies were submittedto the EPA on June 19,2012. 

### 401 KAR51:001. Definitions for 401 KARChapter51. 401 KAR51:017. Prevention ofsignificantdeterioration ofairquality. 401 KAR51:052. Review ofnew sources in orimpacting upon nonattaiumentareas. A schedule for final adoption ofthe administrative regulations into the Kentucky SIP is as follows: 

## IEnd ofpublic comment period, in which a public hearing is
1 conducted July 31,2012

Submit Statement ofConsideration ofcomments received August 15, 2012 during public commentperiod First legislative subcommittee (Administrative Regulation September 2012 Review Subcommittee)reviews regulation Second legislative subcommittee (Natural Resources and October 2012 Environment Subcommittee) reviews regulation

1 Ifreviewed by 2nd subcommittee,
· the effective date is at adjournment Announce effective date ofregulation ofmeeting, else 30 days after the regulationreferral by 1st l subcommittee 

# ISubmit amendments to EPA as an amendmentto Kentucky's SIP EarlyNovember 2012
KentuckyUnbridledSpirit.com An Equal Opportunity EmployerM/F/DMs. Gwen Keyes Fleming June 27, 2012 Page2
Ifyou have any comments or questions regarding this request, please contact Laura Lund at (502)**564~3999** orLaura.Lund@ky.gov.

Cc: Lynorae Benjamin Scott Davis JSL/llSteven L. Beshear Governor



### Scott Davis, Chief Air Planning Branch U.S. EPA, Region 4 61 Forsyth Street, SW Atlanta, Georgia 30303 Dear Mr. Davis: Energy and Environment Cabinet Department for Environmental Protection Division for Air Quality 200 Fair Oaks Lane, 1st Floor Frankfort, Kentucky 40601-1403 air.ky.gov**Jun~** 

### 18, 2012 Leonard K. Peters Secretary



### The Kentucky Division for Air Quality encloses for your review and comment a proposal to amend the following administrative regulations, which are currently approved to the Kentucky State Implementation Plan. These amendments were filed with the Legislative Research Commission on June 14, 2012. Two sets of the following administrative regulations are enclosed: 401 KAR 51:001. Definitions for 401 KAR Chapter 51. (Amendment) 401 KAR51:017. Prevention ofsignificant deterioration ofair quality. (Amendment) 401 KAR 51:052. Review ofnew sources in or impacting upon nonattainment areas. (Amendment) 

### This letter, the regulations, and the public hearing notice have been transmitted electronically to you and Ms. Lynorae Benjamin. The proposed administrative regulations will be published in the July 1, 2012, Administrative Register of Kentucky. 

### A public hearing will be conducted on July 24, 2012, at 10:00 a.m., in Conference Room 201B ofthe Division for Air Quality, 200 Fair Oaks Lane, Frankfort, Kentucky. Comments on the proposed regulation amendments will be accepted until close ofbusiness on July 31, 2012. Ifyou have any comments or questions regarding this submittal, please contact Laura Lund at (502) 564-3999, ext. 4428, or Laura.Lund@ky.gov.

Cc: Lynorae Benjamin JSL/ll Enclosures
KentuckyUnbridledSpirit.com 

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. JohnS. Lyons 

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Director

An Equal Opportunity EmployerM/F/D