Official State of Iowa Website Here is how you know

Search for a News Release

Press/Media inquiries:

DNR News Releases

Air Quality permits under review, published 1/19/2023

  • 1/19/2023 2:32:00 PM
  • View Count 8882
  • Return

DES MOINES – The DNR Air Quality Bureau has the following draft permits up for review. The permits help protect Iowans’ health and air quality. DNR’s permitting staff review each permit application to ensure facilities comply with state and federal air quality requirements. We encourage public comments on draft permits, providing help on how to make effective comments. Submit written comments to the assigned permit writer before 4:30 p.m. on the last day of the comment period. DNR considers public comments before finalizing the permits.

Title V Operating Permits

Title V Operating permits are reviewed and re-issued every five years. Facilities with a Title V permit have the potential to emit large amounts of air pollutants compared to other facilities. The five-year reviews are a federal requirement and ensure adequate monitoring is included in the permit. The DNR plans to issue Title V Operating Permits for the following facilities.  Find permit details at

Page County
NSK Clarinda – 1100 N First St., Clarinda.
The application was submitted to operate their existing Ball and Roller Bearings facility. The public comment period ends Feb 18. 

Construction Permits

DNR engineers review and issue construction permits to facilities before they build new or modify existing sources of air pollution. The public may review the following air quality construction permits available online at OR through the EASY Air Public Inquiry Portal and then click the Public Notice tab.

Clinton County
Guardian Industries, LLC – 300 South 5th Ave E, DeWitt.
Project No. 22-308, The Curtain System/Climaguard Curtain Coater is no longer operating at the facility; therefore, permit number 95-A-154-P5 is being amended to remove all references to the curtain coater. The public comment period ends Feb 17.