Governing Law and Regulations
Maryland Department of the Environment (MDE) Air and Radiation Management Administration
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Maryland requires any new, modified, replaced, or relocated source of air pollution to secure an air quality permit to construct, unless specifically exempted. New major sources or modifications to existing major sources must comply with the applicable provisions of nonattainment New Source Review (NSR) and/or Prevention of Significant Deterioration (PSD) depending on the attainment status of the area where the source is located and the type and quantity of air pollutants emitted.
Maryland currently has several counties that are in nonattainment with one or more of the National Ambient Air Quality Standards (NAAQS). Therefore, the provisions of nonattainment NSR and PSD apply to new major sources or major modifications in the state. Maryland administers state implementation plan (SIP)-approved nonattainment NSR and PSD programs. Therefore, the provisions of federal nonattainment NSR, PSD, and any ...