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Smog Check & Emissions Testing Stations in San Marcos, CA

12 of the 82 auto repair shops we list in San Marcos 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. Gp Autoworks

    1801 Diamond St Ste 102, San Marcos, CA 92078-5178

    Mon–Fri 8am–4pm

    Smog & emissions
  2. North County Smog Auto Repair

    1288 W San Marcos Blvd Ste 100, San Marcos, CA 92078

    Smog & emissions
  3. High Tech Auto

    1620 Grand Ave #5, San Marcos, CA 92078

    Smog & emissions
  4. Smog Central Station

    375 S Rancho Santa Fe Rd, San Marcos, CA 92078-2345

    Smog & emissionsA/C repair
  5. Brake Stop and Auto Repair

    207 Via Vera Cruz, San Marcos, CA 92078

    Smog & emissions
  6. All Autos Smog Check

    738 W San Marcos Blvd, San Marcos, CA 92078

    Smog & emissions
  7. Fast Automotive Center

    1288 W San Marcos Blvd, San Marcos, CA 92078-4075

    Smog & emissionsDiesel & truckEuropean & importA/C repair
  8. So Cal Smog Check

    855 Rancheros Dr Ste B, San Marcos, CA 92069

    Smog & emissions
  9. Platinum Auto & Smog Services

    864 W San Marcos Blvd, San Marcos, CA 92078

    Smog & emissions
  10. Auto Smog Specialist

    2506 S Santa Fe Ave # B4, San Marcos, CA 92084

    Smog & emissions
  11. Smog Depot #1

    755 W San Marcos Blvd Ste 106, San Marcos, CA 92078

    Smog & emissions
  12. Smog First

    1321 Descanso Ave, San Marcos, CA 92069

    Smog & emissions
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 San Marcos

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Smog Check & Emissions Testing Stations near San Marcos

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.