Northern VA emissions

Hot Rod

Contributing Member

I have only noticed them on on-ramps/exits to interstate highways. If I use a car regularly, it is normally capture by the system. I rarely have to go to a smog test place.

Eric Nelson

Contributing Member
These are all over the exit ramps here in Fairfax County. They send notifications in the mail.
When I last needed an emissions inspection in December 2018, I looked up the schedule and went out and drove past a couple of their sensors several times off Route 28.
Several days later, my car finally showed up on their database as "passed," and I renewed my registration. I never got any kind of notification in the mail from them, however, nor have I ever gotten one after almost thirty years of occasionally driving past their sensors. And my car was not in their database before I did this last December.