Notice of Public Meeting

March 31, 2021

Louisville Metro Air Pollution Control District
Notice of Public Meeting

What action is the District taking? 
The Louisville Metro Air Pollution Control District is announcing a public meeting on April 7, 2021 at 6:00 p.m. to present information and answer questions regarding Regulation 2.04, Construction or Modification of Major Sources in or Impacting upon Non-Attainment Areas (Emission Offset Requirements), and a related Advance Notice of Proposed Rulemaking (ANPR). The District opened a comment period March 10, 2021, on an ANPR for Regulation 2.04, Version 8.

Summary of proposal 
Because Louisville has been designated nonattainment by U.S. EPA for the 2015 ozone NAAQS, the District is required to implement a “Nonattainment New Source Review” (NNSR) program. The District is asking for feedback on the best approach to updating its implementation of Regulation 2.04, which is the District’s current NNSR program. The District is considering a range of options from minor updates to a larger over-haul of the rule to match a set of changes to corresponding federal regulations made by the U.S. EPA between 2002 and earlier this year known as “New Source Review Reform.” Updates to the federal rules include:

  • Changes to how baseline emissions are calculated,
  • The new “actual-to-projected-actual applicability test” in place of the “actual-to-potential test,”
  • Addition of “Plantwide Applicability Limits (PALs),”
  • Changes to “Project Aggregation,” and
  • “Project Emissions Accounting.”

For more information please see the notice announcing the comment period, and the full ANPR at

How can I attend the public meeting? 
The public meeting will be held via Webex teleconference (due to the COVID-19 pandemic), which can be accessed online or by telephone, from 6:00 to 7:30 p.m., or until discussion ends (whichever is first). You can join the meeting at, or by calling 415-655-0001 (US Toll) and using access code: 157 173 4640 at the appointed time. This information will also be posted to the docket for this action before the meeting.

What is the purpose of the public meeting?
This public meeting is intended as an opportunity for the public to ask questions about the ANPR, and to interact with the District on a more informal level than the public hearing opportunity provided during the formal regulatory proposal and comment period. Written comments from the public are welcome throughout the informal comment period.

How can I comment on this action?
You can comment in writing by emailing [email protected], online here, or by mail to the Board Secretary-Treasurer, Byron Gary, Louisville Metro Air Pollution Control District, 701 W. Ormsby Ave., Suite 303, Louisville, Ky 40203, until 5:00 p.m., April 9, 2021.

Where can I get a copy of the proposed action?
A paper copy of the ANPR may be obtained from the District by contacting us at (502) 574-6000. Please specify that you are calling about Regulation 2.04, ANPR, provide your name and mailing address, and allow time for processing and delivery via USPS. An electronic copy of the proposal may be downloaded from the District’s website at

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