Frequently Asked Questions
Our Services
Safety Standards and Practices
Founded in 2017 in Gilroy, Ca, Mosher Equipment Services takes great pride in providing tractor and heavy equipment repair in a timely and well educated manner. We are a mobile service that comes to you with affordable prices. Our services include a wide range of heavy equipment repair, servicing, diagnostics, and more to meet your needs. From on-site repairs to comprehensive diagnostics, we ensure reliable and efficient solutions tailored to your equipment requirements. With over 20 years in the industry and a Graduate of Think Big at San Joaquin Delta College, it is my mission to provide the best experience possible.
Safety is our top priority at Mosher Equipment Services. We adhere to strict safety standards and practices to safeguard your equipment during repairs and maintenance. Our technicians are trained professionals with a focus on safe practices and equipment handling. With regular maintenance checks and adherence to industry standards, we ensure that your heavy equipment is serviced securely and efficiently.
California Clean Truck Check Information
What It Means to Be “Compliant” in California
California’s Clean Truck Check program requires:
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OBD (On-Board Diagnostics) testing (model year requirements vary)
-
OVI (On-Vehicle Inspection) testing
These tests confirm your truck’s emissions systems are working properly and help reduce air pollution statewide.
A compliant truck means:
✔ It passed both required emissions tests
✔ All emission-related components are present and functioning
✔ There are no active emission-related trouble codes
✔ Documentation is provided for DMV/ enforcement
Why Choose Our Mobile Testing Service?
We Offer:
🚚 On-Site Testing at Your Yard or Terminal
No driving to a station. We come to you, saving time and downtime.
🔧 Certified OBD & OVI Testing
Professionally certified and fully compliant with California Air Resources Board (CARB) and DMV requirements.
📄 Fast, Professional Reporting
We deliver compliant documentation you can use for DMV, clean truck check stops, audits, or fleet records.
⏱ Flexible Scheduling
Weekend appointments available across the Bay Area, California.
💡 Expert Guidance
If your truck isn’t compliant yet, our technicians can explain next steps and help you fix issues quickly.
How It Works In 3 Easy Steps
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Schedule Service
Call or book online. We confirm your location and model year info. -
We Test Your Truck/Trucks On-Site
Our mobile certified tester arrives with all tools to run OBD & OVI checks. -
Receive Your Results
You get official compliance documentation and test reports right away.
Who Needs This Testing?
✔ Heavy-duty trucks subject to California Clean Truck Check
✔ Fleets with compliance schedules
✔ Independent drivers who want to avoid violations
✔ Trucks operating in high-emission zones or port drayage
Common Questions
Q: What is a Clean Truck Check?
A. Clean Truck Check is an official emissions inspection including On-Board
Diagnostics (OBD) and On-Vehicle Inspection (OVI) to ensure trucks meet
California emissions standards.
Q: Does my diesel truck need an OBD test?
A. Many model years do require OBD testing under California Clean Truck Check;
our team confirms your exact requirements.
Q: Can compliance be done at my yard?
A. Yes! We’re a mobile certified tester and can perform checks wherever your truck
is parked.
Q: What if my truck fails?
A. We provide clear results and can point you to the next steps for repairs and
re-testing.
