All states›Smog Check & Emissions Testing Stations›California›Ontario

Smog Check & Emissions Testing Stations in Ontario, CA

21 of the 158 auto repair shops we list in Ontario have smog checks or emissions tests.

Not every repair shop is licensed to test emissions, and a map search for a smog check mixes test stations with parts stores and dealerships. Every station here names smog checks or emissions testing in its business name, its listing category or on its own website.

  1. Superior Auto Repair & Tires & Smog

    2205 E 4th St, Ontario, CA 91764

    Smog & emissions
    Call Website Directions

  2. ACE Smog Center

    601 E Holt Blvd, Ontario, CA 91761

    Smog & emissions
    Call Website Directions

  3. Central Auto Repair and Mufflers

    10881 S Central Ave, Ontario, CA 91762-3908

    Smog & emissionsMuffler & exhaust
    Call Website Directions

  4. Ontario Smog

    152 N Mountain Ave, Ontario, CA 91762

    Smog & emissions
    Call Website Directions

  5. T & T Smog Test Only

    5490 W Mission Blvd, Ontario, CA 91762-7612

    Smog & emissions
    Call Website Directions

  6. Diesel Emissions Service

    1520 E Francis St, Ontario, CA 91761-5792

    Smog & emissionsDiesel & truck
    Call Website Directions

  7. Savon Smog Plus

    1125 W Holt Blvd, Ontario, CA 91762-3637

    Smog & emissions
    Call Website Directions

  8. DNV Smog & Test Only

    2315 S Euclid Ave, Ontario, CA 91762

    Smog & emissions
    Call Website Directions

  9. Hector's Smog Check

    939 W State St, Ontario, CA 91762

    Smog & emissions
    Call Website Directions

  10. Immanuel Auto Smog Check

    817 E Holt Blvd, Ontario, CA 91761

    Smog & emissionsTransmission repairA/C repair
    Call Website Directions

  11. La Cross Smog & Tune

    546 W Holt Blvd, Ontario, CA 91762

    Smog & emissions
    Call Website Directions

  12. S & E SMOG and Oil Change

    2235 E 4th St Ste H, Ontario, CA 91764

    Smog & emissions
    Call Website Directions

  13. Mario Test Only - Smog Check

    5420 W Mission Blvd, Ontario, CA 91762

    Smog & emissions
    Call Website Directions

  14. Diesel Emissions Service

    400 S Wineville Ave, Ontario, CA 91761-8650

    Smog & emissionsDiesel & truck
    Call Website Directions

  15. Automotive Testing & Development Services

    400 S Etiwanda Ave, Ontario, CA 91761

    Smog & emissions
    Call Directions

  16. Avid Smog

    1409 W Holt Blvd, Ontario, CA 91762

    Smog & emissions
    Call Directions

  17. Enav Smog Shop

    2314 S Vineyard Ave, Ontario, CA 91761-7778

    Smog & emissions
    Call Directions

  18. Ace Smog Pros

    216 S San Antonio Ave, Ontario, CA 91762

    Smog & emissions
    Call Directions

  19. Pro Smog Center

    201 S Wineville Ave Ste K, Ontario, CA 91761-7890

    Smog & emissions
    Call Directions

  20. Low Price Smog Check

    2480 S Archibald Ave, Ontario, CA 91761

    Smog & emissions
    Call Directions

  21. K & M Smog Check

    534 S Mountain Ave, Ontario, CA 91762-4141

    Smog & emissions
    Call Directions
Bring your registration renewal notice. States that require emissions testing usually print the type of test on it. In California, a notice that says “STAR station required” means only a STAR-certified station can do the check, and test-only stations check cars but do not repair them.

Also in Ontario

More in Ontario and California

Smog Check & Emissions Testing Stations near Ontario

Good to know

How much does a smog check cost?

Prices depend on the state and the station. In California a smog check usually costs about $30–70 plus the state certificate fee; in states that run their own emissions programs the fee is often a flat amount set by the state.

What happens if my car fails the emissions test?

You get a report with the reason for the failure, and the car needs repairs before a retest. Many states give a free or discounted retest within a set number of days, and some offer repair assistance or waivers when repair costs pass a limit.