Section 46.10-20 - Application for the assignment and renewal of subdivision load lines(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