Payee may be required to notify Secretary who his payors and brokers are
For purposes of this section, the Secretary may require any payee of reportable interest or dividend payments who is subject to withholding under subsection (a)(1)(C) to notify the Secretary of—
(A) all payors from whom the payee receives reportable interest or dividend payments, and
(B) all brokers with whom the payee has accounts which may involve reportable interest or dividend payments.
The Secretary may notify any such broker that such payee is subject to withholding under subsection (a)(1)(C).