Upon the request of any person in any action for which special interpretation services established pursuant to subsection (a) are not otherwise provided, the Director, with the approval of the presiding judicial officer, may make such services available to the person requesting the services on a reimbursable basis at rates established in conformity with
section 9701 of title 31, but the Director may require the prepayment of the estimated expenses of providing the services by the person requesting them.