- Smog Inspections - California DMV
Smog inspections are required when you register or renew registration for a vehicle in California, but there are some exceptions
- Smog | Description, Causes, Effects, Types | Britannica
Smog, community-wide polluted air Although the term is derived from the words smoke and fog, it is often used to describe the pall of automotive or industrial origin that lies over many cities, and its composition is variable At least two distinct types of smog are recognized: sulfurous smog and photochemical smog
- Smog, Soot, and Other Air Pollution from Transportation
EPA has set standards for smog, soot and other air pollutants, as well as created programs that lead to investments in clean vehicle and engine technology
- California Smog Check Requirements 2025 | Rules, STAR . . .
Discover who needs a smog check, what vehicles are exempt, when STAR stations are required, and how to prepare Stay legal and pass your California smog test in 2025
- AirNow. gov
AirNow is your one-stop source for air quality data Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views
- Home page - Bureau of Automotive Repair
The Bureau of Automotive Repair serves Californians through effective regulation of the automotive repair and Smog Check industry
- Check a vehicles inspection history - Bureau of Automotive . . .
The Bureau of Automotive Repair’s Vehicle Inspection Results page, displays Inspection history based on the vehicle VIN or license plate
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