Vehicle Emission Testing Services

Locations in Temecula and Menifee, CA

Unbiased Assessments 

Walk-Ins & Same-Day Appointments

Services in 15 to 20 Minutes

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State Licensed Vehicle Emission Testing Services

Tri-City Smog is your trusted partner for comprehensive vehicle emissions testing in Temecula and Menifee, CA. With over 30 years of experience, we’ve become the go-to destination for drivers seeking reliable, efficient, and unbiased smog checks.


Our state-licensed and certified facility features cutting-edge technology and is staffed by ASE-certified technicians dedicated to delivering accurate assessments for all vehicle types.

We understand the importance of fast, dependable service. That’s why we offer a wide range of testing options—from standard smog inspections to specialized checks for diesel and hybrid vehicles. As a test-only location, we provide impartial evaluations with no conflict of interest.


Whether you're a local resident or visiting from out of state, we’re here to help you meet California’s strict emissions standards with ease and confidence. Contact us now to get started!

Why Choose Tri-City Smog

Unbiased Assessments

State Licensed and Certified

We Test All Vehicles

Clean Truck Checks

Services in 15 to 20 Minutes

Walk-Ins Welcome

Tri-City Smog
Black vehicle emitting exhaust.

Reliable Diesel Smog Inspections

Our diesel smog check service is designed to meet the unique needs of diesel vehicle owners. We use advanced equipment to accurately measure emissions from diesel engines, ensuring compliance with California's strict standards. Our technicians are well-versed in the intricacies of diesel technology, providing thorough and reliable inspections.

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Smog Checks for Hybrid Cars

As hybrid vehicles become increasingly popular, we've adapted our services to cater to their specific needs. Our hybrid car smog checks take into account the dual-power systems of these vehicles, ensuring that both the gasoline engine and electric components are functioning optimally for clean emissions.

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Out-of-State Vehicle Testing

New to California or visiting from another state? We provide out-of-state smog checks to help you register your vehicle in the Golden State. Our team is familiar with the requirements for out-of-state vehicles and can guide you through the process, ensuring a smooth transition to California's emission standards.

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Regular, Accurate Smog Inspections

Our regular smog inspections are thorough and efficient, designed to keep your vehicle compliant with state regulations. We use state-of-the-art equipment to test your vehicle's emissions system, ensuring accuracy and reliability in our results. Our goal is to get you in, tested, and back on the road as quickly as possible without compromising on quality.
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Certified STAR Smog Inspections

As a STAR-certified station, we're qualified to perform smog checks on vehicles that require this higher level of inspection. Our STAR smog inspections are conducted with the utmost precision, meeting the stringent requirements set by the California Bureau of Automotive Repair. Trust us to provide the comprehensive testing needed for STAR program compliance.

Sign prohibiting vehicles emitting pollutants.

Unbiased, Test-Only Smog Checks

Our test-only facility ensures that you receive an unbiased assessment of your vehicle's emissions. We don't perform repairs, which means you can trust that our sole focus is on providing accurate testing results. This impartiality is especially important for vehicles directed to test-only stations by the DMV.

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Smooth Smog Checks for Title Transfers

When transferring a vehicle title in California, a smog check is often required. We offer quick and reliable title transfer smog checks to facilitate a smooth ownership transition. Our efficient process helps you complete this necessary step with minimal hassle, allowing you to finalize your vehicle transfer promptly.
Veterans Save on Smog Tests
Tri-City Smog offers a 5% discount for veterans at our Temecula and Menifee locations. Keep your vehicle compliant and save money with our reliable testing services.
Call now to schedule your discounted smog test!
Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
Contact Us
Senior Discount on Smog Checks
Seniors enjoy a 5% discount on vehicle smog testing at Tri-City Smog. Visit us in Temecula or Menifee for fast, efficient service at a great price.
Book your appointment today and save!
Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
Contact Us
Veterans Save on Smog Tests
Tri-City Smog offers a 5% discount for veterans at our Temecula and Menifee locations. Keep your vehicle compliant and save money with our reliable testing services.
Call now to schedule your discounted smog test!
Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
Contact Us
Senior Discount on Smog Checks
Seniors enjoy a 5% discount on vehicle smog testing at Tri-City Smog. Visit us in Temecula or Menifee for fast, efficient service at a great price.
Book your appointment today and save!
Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
Contact Us
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Here's what our satisfied customers are saying...

At Tri-City Smog, we take pride in providing exceptional smog checks and inspections to our customers. We would be grateful if you could share your thoughts about our local, family-owned business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Tri-City Smog and let others know what you think.