Utah Administrative Code

The Utah Administrative Code is the body of all effective administrative rules as compiled and organized by the Division of Administrative Rules (see Subsection 63G-3-102(5); see also Sections 63G-3-701 and 702).

NOTE: For a list of rules that have been made effective since October 1, 2019, please see the codification segue page.

NOTE TO RULEFILING AGENCIES: Use the RTF version for submitting rule changes.

R307. Environmental Quality, Air Quality.

Rule R307-165. Emission Testing.

As in effect on October 1, 2019

Table of Contents

R307-165-1. Purpose.

R307-165 establishes the frequency of emission testing requirements for all areas in the state.

R307-165-2. Testing Every 5 Years.

Emission testing is required at least once every five years of all sources with established emission limitations specified in approval orders issued under R307-401 or in section IX, Part H of the Utah state implementation plan. In addition, if the director has reason to believe that an applicable emission limitation is being exceeded, the director may require the owner or operator to perform such emission testing as is necessary to determine actual compliance status. Sources approved in accordance with R307-401 will be tested within six months of start-up. The Board may grant exceptions to the mandatory testing requirements of R307-165-2 that are consistent with the purposes of R307.

R307-165-3. Notification of DAQ.

At least 30 days prior to conducting any emission testing required under any part of R307, the owner or operator shall notify the director of the date, time and place of such testing and, if determined necessary by the director, the owner or operator shall attend a pretest conference.

R307-165-4. Test Conditions.

All tests shall be conducted while the source is operating at the maximum production or combustion rate at which such source will be operated. During the tests, the source shall burn fuels or combinations of fuels, use raw materials, and maintain process conditions representative of normal operations. In addition, the source shall operate under such other relevant conditions as the director shall specify.

R307-165-5. Rejection of Test Results.

The director may reject emissions test data if they are determined to be incomplete, inadequate, not representative of operating conditions specified for the test, or if the director was not provided an opportunity to have an observer present at the test.


air pollution, emission testing

Date of Enactment or Last Substantive Amendment

September 2, 2005

Notice of Continuation

February 5, 2015

Authorizing, Implemented, or Interpreted Law


Additional Information


For questions regarding the content or application of rules under Title R307, please contact the promulgating agency (Environmental Quality, Air Quality). A list of agencies with links to their homepages is available at http://www.utah.gov/government/agencylist.html or from http://www.rules.utah.gov/contact/agencycontacts.htm.