Versions of Ohio Code 3704.037 - Tiered permitting system for air contaminant sources - petition for exemption on LawServer 2023 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2020 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2018 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2016 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2015 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2014 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2013 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption 2009 Ohio Code 3704.037 – Tiered permitting system for air contaminant sources – petition for exemption