| Abstract |
The Sector Policies and Programs Division (SPPD) of the U.S. Environmental Protection Agency's (EPA's) Office of Air Quality Planning and Standards (OAQPS) is developing a final rule to implement New Source Performance Standards (NSPS) on compression ignition (CI) stationary internal combustion engines by June 28, 2006. This rule, which is in response to a consent decree and is under the authority of Section 111(b) of the Clean Air Act, will address emissions for nitrogen oxides (NO(sub x)), sulfur dioxide (SO(sub 2)), particulate matter (PM), nonmethane hydrocarbons (NMHC), and carbon monoxide (CO) from new CI engines. The requirements of the NSPS generally follow the nonroad diesel engine rule developed by EPA's Office of Transportation and Air Quality (OTAQ) in 2004. The NSPS contains requirements for owners, operators, and manufacturers of stationary CI engines. The NSPS requires manufacturers to certify their 2007 and later model year stationary nonemergency CI engines to the Tier 2, Tier 3, and Tier 4 certification emission standards for nonroad diesel engines for all the pollutants (except SO(sub 2)). This NSPS incorporates most of the requirements of the final nonroad engine rule. All new stationary CI engines ordered after the proposal date of this rule (June 29, 2005) and manufactured after April 1, 2006 (or July 1, 2006, for fire pump engines) will be covered. |
