46 CFR §8.450

1. (a)The Coast Guard may terminate an authorization agreement with a classification society to participate in the Alternate Compliance Program if:
   1. (1)The Commandant revokes the classification society's recognition, as specified in § 8.260; or
   2. (2)The classification society fails to comply with the conditions of the authorization agreement as specified in § 8.130.
2. (b)In the event that a flag administration of a country changes conditions related to the authority that is delegated to ABS, the Commandant may modify or revoke the Coast Guard's authorization of that classification society that has its headquarters in that country.
3. (c)Certificates issued by a classification society which has had its authorization to participate in the Alternate Compliance Program terminated, will be subject to the provisions of § 8.330.
4. (d)Owners or operators of vessels enrolled in the ACP and classed by a classification society that has its authority to participate in the ACP terminated, must:
   1. (1)Change the classification society for the vessel to a classification society that is authorized to participate in the ACP; or
   2. (2)Disenroll the vessel from the ACP.
5. (e)The Coast Guard will provide guidance to a vessel owner affected by the revocation of a classification society's authority to participate in the ACP. This will include notification of when the action required under paragraph (d) of this section must be completed.