; or (B) such physician has been retained by a private party opposing the claim, a law firm or lawyer representing such opposing party, or an interested insurer or other interested third party in the previous 24 months. (e) Record Upon receipt of any initial report or supplemental report under this section, the Secretary shall enter the report in the record and provide a copy of such report to all parties to the proceeding. (f) Expenses All expenses related to obtaining the medical evidence under this section shall be paid for by the fund. If a claimant receives a final award of benefits, the operator liable for payment of benefits, if any, shall reimburse the fund for such expenses, which shall include interest. . 109. Establishment of pilot program to provide impartial classifications of chest radiographs (a) Establishment Part C of the Black Lung Benefits Act ( 30 U.S.C. 931 et seq.), as amended by section 108, is further amended by adding at the end the following: 436. Establishment of pilot program to provide impartial classifications of chest radiographs (a) Definitions In this section: (1) B Reader The term B Reader means an individual who— (A) has a valid license to practice medicine in not less than one State, territory, commonwealth, or possession of the United States