Butte County Air Quality Management District
629 Entler Avenue, Suite 15
Chico, CA 95928
(530) 332-9400

Stationary (and Portable) Agricultural Engines

Owner/Operators of existing agricultural engines over 50 horsepower were required to register their diesel engines with the District by March 1, 2008.  New engine installations must be registered within 90 days of installation.  For more information:  


Please contact the District office for more information regarding diesel engine registration.

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