Nonroad spark-ignition engine emission deterioration factors
By: Assessment and Standards Division, Office of Transportation and Air Quality, U.S. Environmental Protection Agency
Contributors: United States. Environmental Protection Agency
Publisher: United States Environmental Protection Agency
Published: 2010
Place of publication: [Washington, D.C.]
Language: eng
Number of pages: 15
Subjects: Spark ignition engines; Exhaust gas; Vehicles; Motors; Off-road vehicles
Notes: Title from PDF title screen (viewed on December 19, 2013).

"July 2010."

"NR-011d."

"EPA-420-R-10-020."

Includes bibliographical references (pages 13-14).