Charts or ECDIS must be of such a scale and contain sufficient detail to show: (1) all navigational marks which may be used by a ship when navigating the waters which are covered by the chart; (2) all known dangers affecting those waters; and (3) information concerning any ships’ routeing and ship reporting measures applicable to those waters. All charts must be of the latest obtainable edition and be kept up to date from the latest relevant obtainable Weekly Notices to Mariners and Radio Navigational Warnings.