Governing Law and Regulations
New Hampshire Department of Environmental Services (DES) Air Resources Division
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. New Hampshire requires a facility to apply for and obtain a construction permit, referred to as a temporary 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 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.
New Hampshire is currently in attainment with all the National Ambient Air Quality Standards (NAAQS) for the various criteria pollutants, except the 2010 sulfur dioxide standard. Therefore, both the provisions of nonattainment NSR and PSD are applicable in the state. New Hampshire administers a state implementation plan (SIP)-approved programs. Therefore, the provisions of federal nonattainment NSR, PSD, and any amendments are not ...