(a) An Approval Authority may voluntarily terminate its delegation by giving written notice of its intent to the Chief, Office of Operating and Environmental Standards (CG-OES), U.S. Coast Guard. This notice must contain the date on which the termination is to be effective. [45 FR 37213, June 2, 1980, as amended at 47 FR 50496, Nov. 8, 1982; 69 FR 58352, Sept. 30, 2004]