The intervals between drydock examinations and internal structural examinations specified in Sec. 115.600 of this part may be extended by the cognizant OCMI or Commandant. [CGD 85-080, 61 FR 892, Jan. 10, 1996. Redesignated and amended by USCG-2000-6858, 67 FR 21080, 21082, Apr. 29, 2002; USCG-2013-0671, 78 FR 60153, Sept. 30, 2013]