The one thing you should keep in mind is that an inspection certificate is good for 365 days following the date of the test. If you have received a test on a new-used vehicle or for other title changes you may use that same test to renew your registration if your renewal date falls within 365 days from the initial test.
New vehicles are exempt from testing until two years from original title date.
New used vehicles All newly-purchased used vehicles must receive an emissions test prior to registering that vehicle for the first time. This holds true regardless of model year. The only exception is if the new owner of the vehicle was given a valid inspection certificate from the previous year. If this is the case, then that certificate may be used to register the vehicle. Whenever a vehicle's title transfers to another individual within one of the fourteen E-Check counties, that vehicle must be tested.