Enter your Vehicle Year, Vehicle Type, and State, then flag whether a Retest Required to get your Total Smog Check Cost — broken down into Test Fee, Certificate Fee, and your Vehicle Category so you know exactly what you're paying for.
Total Smog Check Cost
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Test Fee
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Certificate Fee
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Vehicle Category
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Smog check costs vary by vehicle age and type. Most vehicles 2000 and newer cost around $74, while older vehicles (1995 and earlier) cost around $108. Motor homes are typically the most expensive at around $168.
The total cost includes the emissions test fee and a state certificate fee (typically $8.25). Some locations may charge additional fees for paperwork or administrative costs.
Most smog check stations offer one free retest within 90 days if your vehicle fails the initial test. However, you'll need to fix any emissions issues before the retest.
Older vehicles require more comprehensive testing procedures and take longer to test. Vehicles from 1995 and earlier need additional tests that newer vehicles with OBD-II systems don't require.
Not all states require emissions testing. California, Arizona, Colorado, Connecticut, and several other states have mandatory smog check programs, typically in urban areas with air quality concerns.
Most states require smog checks every 2 years for vehicle registration renewal. New vehicles are typically exempt for the first few years, and the specific requirements vary by state.
Motor homes cost more because they're larger, heavier vehicles that require specialized testing equipment and procedures. The test takes longer and requires more resources than standard passenger vehicles.
You can get your smog check done at any licensed testing station in your state. Some areas have both test-only and test-and-repair facilities, with different regulations for each type.