Clarifying monitoring requirements for kilns, furnaces, asphalt plants, process heating units, engines, and other types of units under s. NR 428.08(2), Wis. Adm. Code.
Providing stationary sources the option to request an alternative time period to the default 180-day waiting period between the compliance monitoring plan submittal deadline and initial operation of a facility.
Clarifying that the unit exception in s. NR 428.21(3), Wis. Adm. Code, applies only to units constructed before August 1, 2007, as originally intended.
Updating cross references to federal methods for determining NOx emissions from stationary sources.
Accessibility
For the hearing or visually impaired, non-English speakers, or those with other personal circumstances which might make communication at the meeting/hearing difficult, DNR will, to the maximum extent possible and with reasonable advance notice, provide aids including an interpreter, or a non-English, large-print, or recorded version of hearing documents. To access these resources, please contact the email address or phone number listed below as soon as possible.
Appearances at the Hearing and Submittal of Written Comments
The public has the opportunity to testify at the hearing. Pre-registration is strongly encouraged if you plan to provide spoken comments during the hearing. To pre-register, either use the Zoom link above prior to the day of the hearing or download and complete the fillable hearing appearance form and send it to olivia.salmon@wisconsin.gov.
Comments on the proposed rule must be received on or before June 7, 2023. Written comments may be submitted by U.S. mail, E-mail, or through the internet and will have the same weight and effect as oral statements presented at the public hearing.
Written comments and any questions on the proposed rules should be submitted to:  
Olivia Salmon – AM/7
Bureau of Air Management
Department of Natural Resources,
101 S. Webster Street
Madison, WI 53703
(608) 630-5264
The rule may be reviewed, and comments made at: http://docs.legis.wisconsin.gov/code/chr/hearings.
Initial Regulatory Flexibility Analysis
The proposed revisions are intended to clarify existing requirements and to ensure clear and consistent implementation of ch. NR 428, Wis. Adm. Code. The proposed changes to ch. NR 428, Wis. Adm. Code, will not result in any existing facility, small business or otherwise, becoming newly subject to NOx RACT emission limits upon promulgation of this rule.
Agency Small Business Regulatory Coordinator:
Emma Esch (608) 266-1959
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Links to Admin. Code and Statutes in this Register are to current versions, which may not be the version that was referred to in the original published document.