; and (B) in the case of a claim relating to professional services, be not less than $500. Such amounts shall be adjusted by the Secretary each year by the percentage increase in the consumer price index. (4) Procedures The following procedures shall apply during a voluntary arbitration proceeding under this subsection: (A) The plan or provider involved may make an offer to settle the disputed claim. The party to whom such an offer is directed shall respond to such offer within 15 days after receipt of the offer. (B) If the party receiving an offer to settle under paragraph (A) does not accept such offer, and the arbitrator issues a final order with respect to the disputed claim that is more than 90 percent or less than 110 percent of the offer amount, the party receiving the offer is deemed a non-prevailing party for purpose of paragraph (5). (C) A final order under this paragraph is subject to judicial review under this Act. (D) All parties to a dispute that is subject to arbitration under this subsection may agree to settle claim at any time, for any amount, regardless of whether an offer to settle was made or rejected. (5) Review costs (A) In general The entity that does not prevail under an arbitrator’s final order under voluntary binding arbitration under this subsection shall pay the review costs. (B) Apportionment of costs In the case that both parties to voluntary binding arbitration under this subsection prevail in part, the review costs shall be apportioned among the parties in proportion to the final judgment. The apportionment shall be based on the disputed claim amount. (C) Failure to pay If a party to voluntary binding arbitration under this subsection fails to pay any amount of the ordered review costs within 35 days after the arbitrator’s final order, the party shall be subject to a penalty of $500 for each day that such amount is not paid. (f) Network transparency A self-insured group health plan shall— (1) not later than 1 year after the date of enactment of this section, publish on their