States
California
Simi Valley

Emissions Testing in Simi Valley, California

Find 16 licensed smog check stations in Simi Valley. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in California vary by vehicle type and model year.

16 stations
Simi Valley, CA
View California requirements
JT

Jr Test Only Smog Center #2 & CLEAN TRUCK CHECK

5.0 · 38 reviews
Smog inspection station · 4387 Alamo St Suite A, Simi Valley, CA 93063

Jr Test Only Smog Center #2 & CLEAN TRUCK CHECK offers smog check and vehicle inspection in Simi Valley, California. Vie...

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

Simi SMOG Doc.

5.0 · 9 reviews
Smog inspection station · 1382 E Los Angeles Ave unit c, Simi Valley, CA 93065

Simi SMOG Doc. offers smog check and vehicle inspection in Simi Valley, California. View hours and details.

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

CARB HD Inspection / CARB Clean Truck Check

5.0 · 1 reviews
Smog inspection station · 4212 E Los Angeles Ave #3171, Simi Valley, CA 93063

CARB HD Inspection in Simi Valley, California offers reliable emissions testing and smog check services. View hours and...

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

Valley Smog Test Only

4.9 · 98 reviews
Smog inspection station · 2180 First St c9, Simi Valley, CA 93065

Valley Smog Test Only offers emissions testing and smog check services in Simi Valley, California. View hours and detail...

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

The Original West Valley Smog

4.9 · 159 reviews
Smog inspection station · 1880 Sinaloa Rd B, Simi Valley, CA 93065

The Original West Valley Smog offers reliable emissions testing and smog check services in Simi Valley, California. View...

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

BJ's Automotive

4.9 · 219 reviews
Auto repair shop · 2010 Donville Ave, Simi Valley, CA 93065

BJ's Automotive offers smog check and vehicle inspection in Simi Valley, California. View hours and details.

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

Bill's Quality Auto Care

4.8 · 466 reviews
Auto repair shop · 2016 Donville Ave, Simi Valley, CA 93065

Bill's Quality Auto Care offers emissions testing and smog check services in Simi Valley, California. View hours and det...

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

West Valley Smog

4.7 · 162 reviews
Smog inspection station · 4394 E Los Angeles Ave, Simi Valley, CA 93063

West Valley Smog offers emissions testing and vehicle inspection in Simi Valley, California. View hours and details.

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

Jr Test Only Smog Center

4.7 · 86 reviews
Smog inspection station · 2706 E Los Angeles Ave Unit A, Simi Valley, CA 93065

Jr Test Only Smog Center provides emissions testing and smog check services in Simi Valley, California. View hours and d...

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

High Tech Car Care

4.6 · 135 reviews
Auto repair shop · 2031 Donville Ave, Simi Valley, CA 93065

High Tech Car Care offers smog check and vehicle inspection in Simi Valley, California. View hours and details.

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

Jiffy Lube

4.5 · 580 reviews
Oil change service · 4426 E Los Angeles Ave, Simi Valley, CA 93063

Jiffy Lube offers emissions testing and smog check services in Simi Valley, California. View hours and details.

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

Simi Test Only Smog Center 2

4.5 · 111 reviews
Smog inspection station · 4560 E Los Angeles Ave, Simi Valley, CA 93063

Simi Test Only Smog Center 2 offers emissions testing and smog check services in Simi Valley, California. View hours and...

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

City Guide

Emissions Testing in Simi Valley, California

Finding a reliable place for emissions testing or a smog check in Simi Valley is easier than ever. Our directory lists 16 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 Simi Valley Need an Emissions Test?

Most drivers in Simi Valley 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 Simi Valley Drivers

Before heading to a testing center in Simi Valley, 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 Simi Valley 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 Simi Valley, California

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

You can use this directory to find licensed emissions testing and smog check stations in Simi Valley. 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 Simi Valley 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 Simi Valley 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 Simi Valley 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 Simi Valley. 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