Every year, vessel owners have to renew their Certificate of Documentation. It is possible to renew for up to five years at once. Vessel owners should use this link for NVDC renewal.
Renewing less than 60 days before the expiration date is recommended. Renewing more than 60 days prior to expiration will issue renewal with a new expiration and issuance date, thus shortening the documentation’s period of validity.
Vessel owners can renew their documentation up to 30 days after the expiration date.
After that period, vessel owners cannot “renew” their documentation. However, they can reinstate it. Vessel owners can use this link to reinstate their US vessel documentation.
This only pertains to Federal documentation through the United States Coast Guard. In regards to State registration, refer to the rules and the appropriate governing body in your state.