Section 451.18 - Review of denials of approval(a) An applicant aggrieved by a decision of an approval authority may obtain review of the decision by the Chief, Office of Operating and Environmental Standards (CG-522), U.S. Coast Guard. The decision of the Chief, Office of Operating and Environmental Standards (CG-522), U.S. Coast Guard is a final agency action.45 FR 37214, 6/2/1980, as amended at 47 FR 50496, 11/8/1982; 69 FR 58353, 9/30/2004