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IDNR has made proposed changes to the Iowa Administrative Code available for public review and comment. The proposed changes include:

  •  Eliminating the Iowa-specific stack testing methods (the Compliance Sampling Manual) and adopting the federal reference test methods.  
  •  Codifying stack testing requirements (i.e., performing compliance tests at 90% or more of the equipment's rated or permitted capacity). 
  •  Adopting a revised version of the Title V Periodic Monitoring Guidance. 
  •  Updating PM and other air quality definitions to be consistent with federal definitions (including redefining standard conditions as 68ºF, not the 70ºF included in the current definition, clarifying PM includes the condensable fraction). 
  •  Reducing of the lead time and allowing for email submittal of relocation notices for portable plants such as concrete batch plants.  
  •  Revising Iowa's rules to reflect recent federal PSD regulatory changes related to PM2.5 (ensuring Iowa maintains its ability to issue PSD permits). 
  •  Codifying a mechanism to rescind a PSD permit and defining when and what type of recordkeeping is required for PSD-avoidance projects (defining "reasonable possibility"). 

Comments are due May 18, 2012, and a public hearing will be held on May 18, 2012, at 1 pm. For more information visit the IDNR website.