every 2 years
Not every county in Virginia require emission inspection but the counties that do it is every two years.
Emissions testing is no longer required in Florida. It was once a yearly test of your vehicle at a state emissions facility and costed $10.00.
once a year
your vehicle must have an emissions test for registration renewal, beginning when it is five years old. If your vehicle requires an emissions test, you will receive a reminder as part of your vehicle licence renewal application
After one year, all new cars bought must pass the emissions test in counties that require the test. Once a vehicle is 25 years old, the emissions test is no longer required.
An emissions test or smog test is required with your car registration in the state of California. It can be as frequent as every other year depending on the age of your vehicle.
Yes, according to the Wisconsin Department of transportation website.
Your vehicle must pass an emissions test when required.
They keep the exhast fumes to a minimal, thus reducing the amount of pollution that is let into the air. Without a muffler there would be double the smog that is already hampening many cities worldwide, that is why it is required as an emissions test. If you don't have a good muffler you will not pass the emissions test. It's job is to both filter out the worst pollution and baffle the noise your car makes.
I never replace it ,only if you need to like before a smog test so it can pass emissions
Not if they test emissions.
No