Custodial accounts

For purposes of this section, a custodial account shall be treated as a trust if the assets of such account are held by a bank (as defined in subsection (n)) or another person who demonstrates, to the satisfaction of the Secretary, that the manner in which he will administer the account will be consistent with the requirements of this section, and if the custodial account would, except for the fact that it is not a trust, constitute an individual retirement account described in subsection (a). For purposes of this title, in the case of a custodial account treated as a trust by reason of the preceding sentence, the custodian of such account shall be treated as the trustee thereof.