University of California, Riverside

Center for Environmental Research & Technology

Mobile Emissions Laboratory

MEL TruckUCR’s Mobile Emission Laboratory (MEL) connects to the total exhaust of a diesel or alternative-fueled heavy duty engine to collect certification grade emissions measurements. The lab is housed inside a tractor trailer, so it can be connected to a heavy duty truck cab and collect measurements while going down the road, transported to any facility to measure and certify large stationary engines, or used in conjunction with UCR’s or others heavy duty engine or chassis dynamometer.

MEL collects information on a wide range of pollutants including criteria, toxics, NH3, and particle size and number. MEL is 1065 compliant and is validated with the California Air Resource Board’s and Southwest Research Institute’s heavy-duty diesel laboratories.

MEL Testing Rate
MEL Prep Day TBD
MEL Test Day TBD
Additional NH3 (per week) TBD
For all pricing inquiries, please contact Kent Johnson at (951) 781-5786 or

More Information 

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Center Information

Center for Environmental Research & Technology
1084 Columbia Avenue
Riverside, CA 92507
Directions to CERT

Tel: (951) 781-5791
Fax: (951) 781-5790

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