Governing Law and Regulations
Oklahoma Department of Environmental Quality (DEQ) Air Quality Division
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Oklahoma requires a facility to apply for and obtain a construction permit before beginning construction of a new source or modifying an existing source. New major sources or modifications to existing major sources must comply with the applicable provisions of nonattainment NSR and/or PSD depending on the attainment status of the area where the source is located and the type and quantity of air pollutants emitted.
Oklahoma is currently in attainment with all the National Ambient Air Quality Standards (NAAQS) for the various criteria pollutants. Therefore, new major sources and major modifications to existing sources are not subject to the requirements of nonattainment NSR at this time. However, such sources and changes are subject to PSD requirements. The state administers a state implementation plan (SIP)-approved PSD program, which means the provisions of federal NSR, including PSD, and any amendments are not effective in Oklahoma until a SIP revision incorporating provisions at least as stringent as the federal ...