If two vehicle plates are lost, stolen or destroyed (or one plate if the vehicle was issued only one plate, e.g. motorcycles), you need to notify the police, and ask the police to complete a police report. Bring police report to a DMV office to surrender the vehicle registration.
뉴욕주 기준이니 살고 계신 주 기준으로… 일단 경찰서부터 가셔야할듯