In my state it is every year and all you do is send your money in and they send you a sticker that allows you to use your vehicle on the road, thats the registration and you put that sticker on your lic. plate. Now in PA we also have an inspection every year to ensure your vehicle is road worthy and in some places but not all there is 1 more test for emissions and that is yet a 3rd sticker. The inspection and emissions go in the corner of the windshield on on the left fork leg in my state.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!