States
California
Modesto

Emissions Testing in Modesto, California

Find 37 licensed smog check stations in Modesto. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in California vary by vehicle type and model year.

37 stations
Modesto, CA
View California requirements
RA

Robinson Autoworks

4.4 · 28 reviews
Auto repair shop · 2001 McHenry Ave ste 203, Modesto, CA 95350

Robinson Autoworks offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
FS

Freedom Smog

4.4 · 323 reviews
Smog inspection station · 830 Kansas Ave, Modesto, CA 95351

Freedom Smog offers emissions testing and vehicle inspection services in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AS

AA Smog

4.3 · 144 reviews
Smog inspection station · 1616 Oakdale Rd #1, Modesto, CA 95355

AA Smog offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AS

Akal Smog & Registration

4.3 · 12 reviews
Smog inspection station · 302 N 9th St, Modesto, CA 95350

Akal Smog & Registration offers emissions testing and smog check in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
FC

Freedom Clean Truck

4.3 · 38 reviews
Car inspection station · 830 Kansas Ave B, Modesto, CA 95351

Freedom Clean Truck offers reliable smog check and vehicle inspection services in Modesto, California. View hours and de...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
MA

Modesto Auto Smog & Repair

4.2 · 10 reviews
Smog inspection station · 1001 5th St, Modesto, CA 95351

Modesto Auto Smog & Repair offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AT

AZ Tech Smog Check

4.2 · 104 reviews
Smog inspection station · 1324 N Carpenter Rd, Modesto, CA 95351

AZ Tech Smog Check offers emissions testing and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AA

A-1 Amigos Smog

4.0 · 23 reviews
Smog inspection station · 109 Amador Ave, Modesto, CA 95358

A-1 Amigos Smog offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
JI

Japanese Imports Auto Service

3.8 · 68 reviews
Auto repair shop · 3345 McHenry Ave, Modesto, CA 95350

Japanese Imports Auto Service offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
SS

Star Smog Station Modesto (Auto Traden CA Dmv Smog Check Station)

3.8 · 52 reviews
Smog inspection station · 425 W Hatch Rd, Modesto, CA 95351

Star Smog Station Modesto offers emissions testing and smog check services in Modesto, California. View hours and detail...

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
SM

Smog Masters

3.6 · 34 reviews
Smog inspection station · 443 S 9th St, Modesto, CA 95351

Smog Masters provides emissions testing and smog check services in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
PA

Paisanos Auto Repair & Smog

3.4 · 133 reviews
Smog inspection station · 586 S 9th St, Modesto, CA 95351

Paisanos Auto Repair & Smog offers smog check and vehicle inspection in Modesto, California. View hours and details.

smog check Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis

City Guide

Emissions Testing in Modesto, California

Finding a reliable place for emissions testing or a smog check in Modesto is easier than ever. Our directory lists 37 licensed and verified emissions testing stations in the city, including STAR-certified and test-only centers where required. Whether you're renewing your registration or completing an out-of-state transfer, this page helps you quickly locate nearby inspection facilities and understand what applies in California.

Do Vehicles in Modesto Need an Emissions Test?

Most drivers in Modesto follow the same rules set by California. Requirements vary based on vehicle age, fuel type, and county. If you're unsure whether your ZIP code or vehicle model year requires a test, use this directory to browse local stations or review our state-specific testing requirements.

Types of Smog Check Services Available

  • Standard emissions tests for gasoline vehicles
  • OBD-II inspections for 1996+ model years
  • Tailpipe testing for older vehicles where required
  • Diesel emissions testing
  • Hybrid and electric vehicle smog checks
  • Registration renewal support
  • Test-only or STAR-certified inspections (state dependent)

Each listing includes the station's address, contact information, operating hours, and service notes to help you choose the right location.

Smog Check Tips for Modesto Drivers

Before heading to a testing center in Modesto, make sure:

  • Your check engine light is off
  • Your vehicle has completed recent drive cycles
  • The gas cap is properly sealed
  • The engine is fully warmed up
  • You have your registration and ID

Following these steps greatly increases the chance of passing on the first attempt.

Why Use This Directory?

Drivers in Modesto rely on this directory because it provides a complete list of verified emissions testing stations, map-based navigation for quick lookup, accurate state-updated requirements, support for gasoline, diesel, hybrid, and electric vehicles, and clear explanations of exemptions and frequency rules.

View California Requirements

Frequently Asked Questions About Emissions Testing in Modesto, California

Get answers to common questions about smog checks, testing requirements, and finding the right station in Modesto.

You can use this directory to find licensed emissions testing and smog check stations in Modesto. Browse the listings above to see addresses, contact details, and services offered, then choose the station that's most convenient for your part of the city.
It depends on California's emissions testing program, your registration ZIP code, and your vehicle's model year and fuel type. Some areas of California require testing, while others do not. Check your California state page in this directory or your DMV's website to see if your address in Modesto is in a testing area.
Most emissions programs require testing every one or two years, usually tied to registration renewal. Some vehicles are tested more frequently, and others are exempt for the first few model years. Use the California state page to see the current 2025 schedule for your vehicle type and registration area.
Prices vary by station and vehicle, but most emissions tests in Modesto fall within the typical range for California. Many stations list pricing by phone or on their website, and some offer coupons or discounts. Use the listings above to contact a station directly for current pricing.
Requirements depend on vehicle type (gasoline, diesel, hybrid, electric), model year, and weight, as well as where your vehicle is registered in California. In many states, fully electric vehicles are exempt, newer vehicles are temporarily exempt, and certain older or specialty vehicles may have different rules. Check the California state page for the latest 2025 requirements.
Most stations in Modesto ask you to bring your current registration or renewal notice, a valid photo ID, and proof of insurance if required by California. Make sure your vehicle is warmed up and the check engine light is off before you arrive.
If your vehicle fails, the station will provide a report showing the reason for failure (such as stored OBD-II codes or high tailpipe readings). In most programs, you must complete repairs and pass a retest before renewing your registration. Some states offer repair assistance, cost caps, or waivers. Details are listed on the California page in this directory.
In some states, certain vehicles are directed to specific station types (such as STAR or test-only centers). Unless your renewal notice or DMV instructions say otherwise, you can usually choose any licensed station in Modesto. If you're unsure, ask the station when you call or check the instructions on your renewal notice.

Can't find what you're looking for? Contact our customer support team