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Office Information
Hours
Monday – Friday 9am – 4pm (PST)
Phone
(909) 982-9898
Fax
(909) 985-2348
Corporate Office
334 N. Euclid Avenue
Upland, CA 91786-6031
Monday – Friday 9am – 4pm (PST)
Phone
(909) 982-9898
Fax
(909) 985-2348
Corporate Office
334 N. Euclid Avenue
Upland, CA 91786-6031
Latest News
- Lawsuit brought by four top truck makers against the CARB and Gavin Newsom, filed 8/11/25August 11, 2025 - 8:01 pm
- Read TPPF’s Letter to the EPA Re: Proposed Greenhouse Gas Vehicle Rule RescissionAugust 11, 2025 - 2:26 pm
- Read the 17-Org Industry Letter to the Engine Manufacturers Association – 8/4/2025August 5, 2025 - 3:14 pm
- WSTA Online StoreMay 7, 2025 - 3:07 pm
- Zero-emission truck deployment behind targets, Calstart findsJanuary 24, 2025 - 5:16 pm