Reciprocating Internal Combustion Engine Regulations

In January 2013, the U.S. Environmental Protection Agency (EPA) amended the emission standards regulations for emissions from reciprocating internal combustion engines.

See EPA's website for information on these engine requirements:

Engine Regulations

Maine DEP Chapter 148, Emissions from Smaller-scale Electric Generating Resources

National Emission Standard for Hazardous Air Pollutants (NESHAP) for Reciprocating Internal Combustion Engines (RICE) – 40 Code of Federal Regulations Part 63, Subpart ZZZZ

New Source Performance Standards (NSPS)

Standards of Performance for Stationary Spark Ignition Internal Combustion Engines; 40 Code of Federal Regulations, Part 60, Subpart JJJJ

Standards of Performance for Stationary Compression Ignition Internal Combustion Engines 40 Code of Federal Regulations, Part 60 Subpart IIII

Contact Information

Air Licensing at (207) 287-7688 or e-mail DEP-Air-Licensing-Help@maine.gov