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Smog Check & Emissions Testing Stations in Hillsboro, OR

5 of the 91 auto repair shops we list in Hillsboro 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. Clays Auto Service

    1929 NE Cornell Rd, Hillsboro, OR 97124

    Mon–Thu 7:30am–5:30pm

    Smog & emissionsA/C repair
    Call Website Directions

  2. Middleton Motors

    5789 NE Cornelius Pass Rd, Hillsboro, OR 97124

    Smog & emissionsA/C repair
    Call Website Directions

  3. European Motor Sports

    2810 SE 39th Loop, Hillsboro, OR 97123

    Smog & emissionsTransmission repairEuropean & importMuffler & exhaustA/C repair
    Call Website Directions

  4. Import Auto Services

    1055 NE 25th Ave Ste L, Hillsboro, OR 97124

    Smog & emissionsTransmission repairEuropean & importA/C repairFree estimates
    Call Website Directions

  5. Hillsboro DEQ Test Station

    5130 NE 5 Oaks Dr, Hillsboro, OR 97124

    Smog & emissions
    Call Website 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.

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Smog Check & Emissions Testing Stations near Hillsboro

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.