About Our Mobile Clean Truck Check
Mobile Diesel Clean Truck Check is a family-owned and operated emissions compliance company serving commercial fleets, industrial operations, marine facilities, oilfield companies, and vehicle owners throughout California.
Founded by Ace Kwara and his two nephews, the company continues a family legacy that began in 1998 when Ace’s father opened smog check operations in Simi Valley before later expanding into Ventura County.
Today, the company provides mobile emissions compliance and testing services throughout California while also operating two physical smog check station locations for passenger vehicles and light-duty vehicles:
These locations provide traditional smog inspections for consumer vehicles, while Mobile Diesel Clean Truck Check focuses on mobile heavy-duty emissions compliance, fleet testing, industrial emissions analysis, and specialized field services.
Ace began working in his father’s shop at just 12 years old and later completed an apprenticeship at a Porsche dealership where he achieved Master status. With more than 30 years of automotive and emissions experience, Ace brings dealership-level diagnostic expertise together with extensive field testing experience across commercial, industrial, marine, and offshore environments.
Mobile Diesel Clean Truck Check provides a wide range of services including:
- Mobile Clean Truck Check testing
- CARB compliance testing
- Diesel opacity testing
- Portable analyzer testing
- Visual emissions inspections
- Fleet emissions compliance support
- AQMD/APCD compliance services
- Industrial and oilfield emissions testing
Through Seaport Emissions Analytics, the company also supports industrial, marine, port, and offshore operations with specialized emissions analysis and compliance testing services. The team performs both onshore and offshore work and is rope access certified to support testing in challenging industrial environments.
The company prides itself on solving difficult compliance and testing challenges. From heavy-duty fleets and generators to industrial equipment, marine applications, and specialized emissions systems, the team works closely with customers to develop practical testing solutions that meet regulatory requirements and keep operations running smoothly. If a customer has unique equipment or testing requirements, the team is committed to helping find the right solution.
