And what about trailer's plates, do I need to surrender trailer plates?
Some trailers do not need to have liability insurance but if your trailer doesn't have a valid registration, you must surrender the plates.
Will the DMV suspend my license if I don't surrender my trailer's plates?
Usually is not needed to surrender a trailer's plates, so the DMV won't suspend your license if you fail to surrender the plates, Is just recommended to surrender any unused vehicle's plates to make sure the plates are destroyed.