Smog Check & CARB Clean Truck Testing Near Glendora, CA: Serving Azusa, Covina, La Verne & Beyond

At Darling Smog, we specialize in test-only emissions testing for personal vehicles and heavy-duty trucks. No upsells, no pressure, just clean, compliant results. Based in Glendora, California, we proudly serve drivers and fleets across the San Gabriel Valley, including Azusa, La Verne, Citrus, Covina, and surrounding communities. Whether you need a standard smog check or a CARB Clean Truck test, we’re your local emissions experts.

With flexible appointment options, fast turnaround, and a team that knows its way around diesel, hybrid, and gasoline systems alike, we make it easy to stay compliant and stay on the road.

What We Test

We offer fast, reliable emissions testing services. Just plug in, test, and go.

Smog Checks for gasoline and hybrid vehicles (2000 and newer) and diesel vehicles (1998 and newer)

Change of Ownership Smogs – required when selling or transferring a vehicle in California

Initial Registration Smogs – for out-of-state vehicles being registered in CA for the first time

CARB Clean Truck Testing On-site– for heavy-duty diesel and commercial vehicles

Mobile CARB Compliance Testing – we come to you for fleet testing

We Do All CARB Required Testing:

Smoke Opacity Testing (2012 and older engine year models)

OBD II Testing (2013 and newer engine year models)

Visual Inspections for alternative fuel trucks and select year trucks

Whether you’re selling your car, registering an out-of-state vehicle, or just keeping your truck compliant, we’ve got you covered.

Need help understanding what type of test your vehicle requires? We’re happy to walk you through it, give us a call or fill out a quick form.

Our Service Area in the San Gabriel Valley

We proudly serve the following cities with expert emissions testing. Not sure if you’re in range? Just ask! We often help drivers from all over the region.

Glendora, CA

Located right on Historic Route 66, we’re easy to find and even easier to work with. Local drivers trust us for quick service, clear results, and total transparency.

Azusa, CA

Just down the road from Azusa, our smog station is a favorite for both personal and commercial vehicles. We offer early morning and mobile appointments to make compliance stress-free.

La Verne, CA

From diesel truck fleets to everyday drivers, La Verne residents rely on us for accurate, honest testing and no surprise fees.

Citrus, CA

Need a quick smog test or Clean Truck verification in Citrus? We’ve got you. Our Glendora location is a short drive away, and our online booking is open 24/7.

Covina, CA

We serve Covina’s drivers and businesses with professional emissions testing for vehicles big and small. Book online or call us for mobile availability.

Why Choose Darling Smog?

Test-only.  Comfy chairs. No pressure.

Quick turnaround times and flexible scheduling

Woman-owned, and veteran-owned, and integrity driven:

we care about clean air and clean results

Mobile testing options for truck fleets or other CARB Clean Truck Testing needs

Convenient location right across from Wendy’s

You won’t get lost: we can guide you!

We’re friendly, fast, and have super comfy chairs

 

Ready to Test? Booking is Easy.
Book Your Smog Appointment Here or Submit a CARB Clean Truck Testing Inquiry Here.

(We also offer mobile service for CARB Clean Truck testing! Let us know what you need on the form and we’ll come to you.)
Call Us: 626-551-4555
Visit Us: 743 West Route 66 STE 4, Glendora, CA