(a) Each member shall maintain the following information: (1) for each account: (A) customer's name and residence; (B) whether customer is of legal age; (C) name(s) of the associated person(s), if any, responsible for the account, and if multiple individuals are assigned responsibility for the account, a record indicating the scope of their responsibilities with respect to the account, provided, however, that this requirement shall not apply to an institutional account; (D) signature of the p...