All records, medical and other reports, statements of witnesses and other papers filed with the Office with respect to the disability, death, or detention of any person coming within the purview of the Act, are the official records of the Office and are not records of the agency, establishment, Government department, employer, or individual making or having the care or use of such records.

Records of the Office pertaining to injury, death, or detention are confidential, and are exempt from disclosure to the public under section 552(b)(6) of title 5, U.S. Code. No official or employee of the United States who has investigated or secured statements from witnesses and others pertaining to any case within the purview of the Act, or any person having the care or use of such records, shall disclose information from or pertaining to such records to any person, except in accordance with applicable regulations (see 29 CFR part 70a).

The protection, release, inspection and copying of the records shall be accomplished in accordance with the rules, guidelines and provisions contained in 29 CFR parts 70 and 70a and the annual notice of systems of records and routine uses as published in the Federal Register.

(a) No claim for legal services or for any other services rendered in respect to a claim or award for compensation under the Act to or on account of any person shall be valid unless approved by the Office. Any such claim approved by the Office shall, in the manner and to the extent fixed by the Office, be paid out of the compensation payable to the claimant.

(b) The Office shall not recognize a contract for a stipulated fee or for a fee on a contingent basis. No fee for services shall be approved except upon application supported by a sufficient statement of the extent and character of the necessary work done on behalf of the claimant. Except where the claimant was advised that the representation would be rendered on a gratuitous basis, the fee approved shall be reasonably commensurate with the actual necessary work performed by the representative, and with due regard to the capacity in which the representative appeared, the amount of compensation involved, and the circumstances of the claimant.

The right of any person to benefits under the Act is not transferable of assignable at law or in equity except to the United States, and none of the moneys paid or payable (except money paid as reimbursement for funeral expenses), or rights existing under the Act are subject to execution, levy, attachment, garnishment, or other legal process or to the operation of any bankruptcy or insolvency law.