how much is an emissions test
1 On average, the cost to have an emission test done is going to vary anywhere from $10 to $30. 2  Emission testing centers are available all throughout the country and your city may have a lot of centers. You should not overfill the tank with gas and the tires should be inflated before you have the test performed. 2  The price for the test in this center can range anywhere from $15 to $25. 3  If your car fails the testing the first time, there are emission testing centers that offer the retest for free.