2021 State Area Designations Regulation

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This page last reviewed December 28, 2021

Proposed 2021 Amendments to Area Designations for State Ambient Air Quality Standards

Hearing Date(s)
Public Comments Received
Erratum
Final Approval / OAL Action

OAL approved this rulemaking and filed with the Secretary of State on October 10, 2022. The amendments are effective October 10, 2022. 

Final Regulation Order
Accessible Final Regulation Order
Adopted Regulations and Materials Submitted to OAL

The final rulemaking package was submitted to OAL on September 19, 2022. OAL has until November 1, 2022, to make a final determination.

Final Statement of Reasons
Updated Informative Digest
Request for Early Effective Date
Final Regulation Order  (See revised above)
Accessible Final Regulation Order  ~See revised above~
Hearing Action and Supplemental 15 Day Notices
Resolution 22-4
Public Hearing Notice and Related Material

Posted December 28, 2021

Notice of Public Meeting  (Deadline to Submit Public Comments: February 14, 2022, or during the Public Hearing on February 24, 2022)
Initial Statement of Reasons
Appendix A: Proposed 2021 Amendments to the State Area Designations
Appendix B: Area Designations Criteria
Appendix C: Maps and Tables of Area Designations for State and National Ambient Air Quality Standards
Appendix D: Convention for Rounding Ambient Air Quality Data
Appendix E: Designation Values and Expected Peak Day Concentrations
Appendix F: Designation Value Tables
More Information

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