skip navigation
New Hampshire Department of Environmental Services

Stationary Non-Emergency or Prime Power Engines
EPA has finalized three Federal regulations that apply to reciprocating internal combustion engines (RICE) used for prime power purposes at both major and area sources of Hazardous Air Pollutants (HAP) emissions. This website is dedicated to prime power RICE located at area sources of HAPs.

National Emission Standard for HAPs (Quad Z)

  • Includes diesel and gas fired engines that were:
    • Existing: Before June 12, 2006.
    • New: On or after June 12, 2006.

New Source Performance Standards (Quad I) and (Quad J)

  • Compression Ignition engines (Quad I) includes diesel fired engines that were:
    • Manufactured after April 1, 2006, or
    • Modified or reconstructed after July 11, 2005.
  • Spark Ignition engines (Quad J) includes gas fired engines that were:
    • Manufactured after July 2007.

Contact NHDES if your facility is not considered an area source.

green arrow Publications

green arrow Rules/Regulatory

green arrow Education/Outreach

green arrow Technical Assistance

green arrowTraining

green arrow Forms/Applications

green arrow Related Programs

green arrow Partnerships

green arrow Resources/Links

green arrow FAQ's

green arrow Contact Us

  • Air Permitting Program
    29 Hazen Drive; PO Box 95
    Concord, NH 03302-0095
    (603) 271-1370
    (603) 271-1381 (fax)



Adobe Acrobat Reader Symbol Adobe Acrobat Reader format. Download a free reader from Adobe.

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

copyright 2017. State of New Hampshire