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The IDNR is accepting informal comments on a draft rulemaking proposal to adopt several National Emission Standards for Hazardous Air Pollutants (NESHAP) and New Source Performance Standards (NSPS) effecting utility boilers, industrial, commercial, and institutional boilers, solid waste incinerators, cement plants, and stationary engines.  By adopting the standards, the IDNR can provide compliance assistance to affected facilities.  The draft proposal is available here.  All informal comments on the draft rulemaking proposal must be received by December 6, 2013.  Written comments should be mailed to Christine Paulson, Department of Natural Resources, Air Quality Bureau, 7900 Hickman Road, Suite 1, Windsor Heights, Iowa, 50324.  Comments can also be faxed (515) 725-9501 or emailed to