States
California
Redwood City

Emissions Testing in Redwood City, California

Find 19 licensed smog check stations in Redwood City. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in California vary by vehicle type and model year.

19 stations
Redwood City, CA
View California requirements
AC

Air Care Smog $36.75 With Coupon

4.9 · 242 reviews
Smog inspection station · 75 El Camino Real, Redwood City, CA 94062

Air Care Smog $36.75 With Coupon offers emissions testing and smog check services in Redwood City, California. View hour...

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

Smog Check Network

4.8 · 23 reviews
Vehicle inspection service · 75 El Camino Real, Redwood City, CA 94062

Smog Check Network offers emissions testing and vehicle inspection in Redwood City California. View hours and details.

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

Cooper's Auto Repair

4.8 · 101 reviews
Auto repair shop · 2901 Middlefield Rd, Redwood City, CA 94063

Cooper's Auto Repair offers emissions testing and smog check services in Redwood City, California. View hours and detail...

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

SpeeDee Oil Change & Auto Service

4.8 · 280 reviews
Oil change service · 550 Veterans Blvd, Redwood City, CA 94063

SpeeDee Oil Change & Auto Service offers emissions testing and smog check services in Redwood City, California. View hou...

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

Auto Master Care

4.8 · 15 reviews
Auto repair shop · 67 El Camino Real, Redwood City, CA 94062

Auto Master Care offers emissions testing and smog check services in Redwood City, California. View hours and details.

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

All Smog El Camino

4.7 · 221 reviews
Smog inspection station · 1414 El Camino Real, Redwood City, CA 94063

All Smog El Camino offers emissions testing and smog check services in Redwood City, California. View hours and details.

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

PENINSULA SMOG

4.7 · 49 reviews
Smog inspection station · 2701 Middlefield Rd B, Redwood City, CA 94063

PENINSULA SMOG offers emissions testing and smog check services in Redwood City, California. Learn about hours and what...

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

Redwood City Star Smog Check

4.6 · 175 reviews
Smog inspection station · 234 El Camino Real, Redwood City, CA 94062

Redwood City Star Smog Check offers emissions testing and smog check services in Redwood City, California. View hours an...

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

Smog Check Stations Redwood

4.6 · 9 reviews
Smog inspection station · 2633 El Camino Real, Redwood City, CA 94061

Smog Check Stations Redwood offers emissions testing and vehicle inspection services in Redwood City, California. View h...

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

H K Smog

4.6 · 54 reviews
Smog inspection station · 24 Willow St # 2, Redwood City, CA 94063

H K Smog offers emissions testing and vehicle inspection services including smog check in Redwood City, California. View...

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

A Smog

4.6 · 35 reviews
Smog inspection station · 844 Fifth Ave, Redwood City, CA 94063

A Smog offers smog check and vehicle inspection services in Redwood City, California. View hours and details on emission...

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

J&A smog and service

4.5 · 21 reviews
Smog inspection station · 975 Woodside Rd, Redwood City, CA 94061

J&A smog and service offers emissions testing and vehicle inspections in Redwood City, California. View hours and detail...

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

City Guide

Emissions Testing in Redwood City, California

Finding a reliable place for emissions testing or a smog check in Redwood City is easier than ever. Our directory lists 19 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 Redwood City Need an Emissions Test?

Most drivers in Redwood City 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 Redwood City Drivers

Before heading to a testing center in Redwood City, 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 Redwood City 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 Redwood City, California

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

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