What can I add icons for?
You can add icons for lifetime licenses/privileges/certifications such as Sportsman, Boating Safety, Small/Big Game, Fishing, Bow Hunting, Muzzle Loading, Trapping, and Empire Passport; annual licenses cannot be added.
Would I be able to get the icons removed if I do not want them any more?
Yes, you would have to contact the agency Parks or DEC that issued the lifetime license, privilege or credential to request they notify the DMV to remove the icons, of course, with a fee.