(a) Payment of fees. Upon receipt of the invoice or statement detailing the charges incurred for processing, the requester shall make payment within 30 calendar days to the Federal Mine Safety and Health Review Commission or FMSHRC, Attention: Office of the Executive Director, 1331 Pennsylvania Avenue NW, Suite 520N, Washington, DC 20004-1710.

(b) Advance payment. Before work is commenced or continued on a request, advance payment may be required if the charges are likely to exceed $250.

(c) Delinquent requesters. Requesters who have previously failed to pay FOIA processing fees associated with a prior request, within the time mandated by paragraph (a) of this section, and are unable to demonstrate that the fee was previously paid, may be required to first pay the unpaid balance plus any applicable interest and then make an advance payment of the full amount of the estimated fee before the new or pending request is processed.

(d) Interest charges. Interest charges may be assessed on any unpaid bill starting on the 31st day following the day on which the billing was sent, at the rate prescribed in 31 U.S.C. 3717,and.

(e) Debt collection. The Debt Collection Act of 1982, Public Law 97-365, including disclosure to consumer credit reporting agencies and the use of collection agencies, will be utilized to encourage payment where appropriate.