Can I replace custom plates that are old or damaged?
Yes, you must call the Personalized Plate Unit at 1 - 518 - 402 - 4838. Hours of operation are 8:00 a.m. at 4:00 p.m., Monday through Friday.
And how do I do with the plates of a vehicle bought by a private?
In that case ask the DMV to transfer your custom license plates when you register the vehicle.