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Current Initiatives

Permit exemptions are being re-evaluated to assure compliance with recent NAAQS changes.


Potential changes in the permitting rules can be found under Rules and Planning and Stakeholder Involvement, Public Input.

Construction Permit Amnesty for Engines

On October 23, 2013, the Iowa DNR, along with the Polk County and Linn CountyAir Quality Divisions, initiated an amnesty program for engines. The intent of the amnesty was to provide Iowa businesses an opportunity to "catch up on" air quality permitting requirements they had missed, without the risk of potential enforcement actions and penalties.

The amnesty period ended on April 23, 2014. DNR is pleased to report that 110 Iowa businesses, operating 127 engines, took advantage of the amnesty and submitted the past due permit applications, registrations, or permit exemption information.

Results of DNR Air Quality Bureau's 6-month amnesty period for as-built engines (includes Linn County and Polk County):

Requirement Number of facilities Number of Engines
Obtain Construction Permit 44 53
Submit Small Engine Registration 60 64
Submit Exemption "g" Notification 6 10
Totals 110 127
EPA has proposed carbon pollution standards for new, existing, modified, and reconstructed power plants. For additional information, please visit our Stakeholder Involvement webpage.
The Department is in the process of updating the rules for major sources in no-attainment areas. Check the web noted below for the status of this effort.

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