(a) Application for assignment and renewal of subdivision load lines and certification thereof shall be made in writing to the Commandant (CG-ENG), Attn: Office of Design and Engineering Systems, U.S. Coast Guard Stop 7509, 2703 Martin Luther King Jr. Avenue SE., Washington, DC 20593-7509. [CGFR 65-50, 30 FR 16769, Dec. 30, 1965, as amended by CGFR 68-60, 33 FR 10077, July 12, 1968; CGD 88-070, 53 FR 34534, Sept. 7, 1988; USCG-2013-0671, 78 FR 60147, Sept. 30, 2013]