Nomination of deposit beneficiaries secures transfer of a depositor's deposits on death under applicable succession provisions. Every depositor is entitled to nominate at any time a person to whom his or her deposits shall vest on death; such nominations are to be governed, as far as may be practicable, by the provisions of the applicable succession provision. The provision establishes the depositor's right to nominate and directs that the succession framework applies to nominations made under this rule.