Related Rule
United States of America
Practice Relating to Rule 82. Recording of the Placement of Landmines
The US Air Force Commander’s Handbook (1980) states: “The party establishing a minefield should always keep a record of its location.” 
United States, Air Force Pamphlet 110-34, Commander’s Handbook on the Law of Armed Conflict, Judge Advocate General, US Department of the Air Force, 25 July 1980, § 6-5.
The US Naval Handbook (1995) states that international law “requires that, to the extent possible, belligerents record the location of all minefields in order to facilitate their removal upon the cessation of hostilities. It is the practice of the United States to record the location of minefields in all circumstances.” 
United States, The Commander’s Handbook on the Law of Naval Operations, NWP 1-14M/MCWP 5-2.1/COMDTPUB P5800.7, issued by the Department of the Navy, Office of the Chief of Naval Operations and Headquarters, US Marine Corps, and Department of Transportation, US Coast Guard, October 1995 (formerly NWP 9 (Rev. A)/FMFM 1-10, October 1989), p. 448, § 9.3.
The US Naval Handbook (2007) states: “International law requires that, to the extent possible, belligerents record the location of all minefields in order to facilitate their removal upon the cessation of hostilities. It is the practice of the United States to record the location of minefields in all circumstances.” 
United States, The Commander’s Handbook on the Law of Naval Operations, NWP 1-14M/MCWP 5-12.1/COMDTPUB P5800.7, issued by the Department of the Navy, Office of the Chief of Naval Operations and Headquarters, US Marine Corps, and Department of Homeland Security, US Coast Guard, July 2007, § 9.3.
In 1976, during discussions in the Ad Hoc Committee on Conventional Weapons established by the CDDH, the United States supported “reasonable and feasible requirements for recording the location of minefields”. 
United States, Statement at the CDDH, Official Records, Vol. XVI, CDDH/IV/SR.29, 25 May 1976, p. 300, § 35.