News and Announcements

Request for Comments: Natural Gas-Fired Boilers, Steam Generators, and Process Heaters

The closing date of the advance notice comment period has been extended from October 3, 2022, to October 17, 2022.

The Utah Division of Air Quality is considering regulating nitrogen oxide (NOx) emissions from natural gas-fired boilers, steam generators, and process heaters as part of the Northern Wasatch Front (NWF) Ozone State Implementation Plan (SIP). As part of our rule development process, the Division is providing stakeholders the opportunity to review and comment on the proposed rule before the formal rulemaking process begins.

Please see the attached files for the proposed rule language and fact sheets. Two rules are under consideration: one for units between 2.0 and 5.0 MMBtu/hr, and one for units with design values greater than 5.0 MMBtu/hr. Estimated costs and impacts of the rule will be included when the rule is proposed to the Air Quality Board for approval of a formal public comment period.

We would like to receive comments on the draft proposed rule by October 3, 2022. Comments can be provided via email to Robert Wood ( Our current schedule is to present these rules to the Air Quality Board at the November 2, 2022, meeting. We expect the formal public comment period to run from December 1 to December 30, 2022, and anticipate presenting final rules for approval at the February 1, 2023, Air Quality Board meeting.

We appreciate your interest and look forward to any comments or thoughts. Please reach out to Ryan Bares ( or myself with any questions or if you would like to discuss these proposed changes in further detail.

Reducing Summertime Ozone Pollution in Utah

Thank you to those who joined our meetings! For those who weren’t able to join, you can now watch the meeting recordings and view the slides. You can also review the Ozone SIP website where you can explore the interactive emissions inventory tool, and of course, submit your emission reduction ideas.

2021 DAQ Annual Report

The Annual Report is intended to provide an overview of Utah’s air quality, as well as the Division of Air Quality’s organization, activities, and progress throughout 2021.

R307-401. Permit: New and Modified Sources

Due to the OAR website having problems publishing the R307-401 rule, DAQ is posting the most updated version of the rule on the DAQ website. The rule was last updated and made effective September 3, 2020.

Oil and Gas Sources – Major CAERS update!

The Centralized Air Emissions Reporting System (CAERS) updates on February 3rd. Watch the tutorial and download the new CAERS User Manual here.

Am I in a Non-Attainment Area?

(06/26/2018)—An address and coordinate search tool that shows air quality non-attainment and maintenance areas in Utah.

Bryce Bird, Director

P.O. Box 144820
Salt Lake City, Utah
Phone: (801) 536-4000
FAX: (801) 536-4099


(801) 536-4123


Multi Agency
State Office Building
195 North 1950 West
Salt Lake City, Utah

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8:00 a.m. to 5:00 p.m. 

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