; and (II) retains, for a period specified through rulemaking by the Secretary, a copy of the documentation described in subclause (I)(aa) and the written notice described in subclause (I)(bb); and (ii) obtains from the participant, beneficiary, or enrollee (or representative) the consent described in subparagraph (C). (B) For purposes of subparagraph (A)(i), the information described in this subparagraph, with respect to a nonparticipating provider and a participant, beneficiary, or enrollee of a health plan or health insurance coverage offered by a health insurance issuer, is a notification of each of the following: (i) That the health care provider is a nonparticipating provider with respect to the group health plan or health insurance coverage. (ii) The estimated amount that such provider will charge the participant, beneficiary, or enrollee for such services involved. (C) For purposes of subparagraph (A)(ii), the consent described in this subparagraph, with respect to a participant, beneficiary, or enrollee of a group health plan or health insurance coverage offered by a health insurance issuer, who is to be furnished air ambulance services by a nonparticipating provider, is a document specified by the Secretary through rulemaking that— (i) is signed by the participant, beneficiary, or enrollee (or by a representative of the participant, beneficiary, or enrollee) not less than 24 hours prior to the participant, beneficiary, or enrollee being furnished such services by such provider; (ii) acknowledges that the participant, beneficiary, or enrollee has been— (I) provided with a written estimate and an oral explanation of the charge that the participant, beneficiary, or enrollee will be assessed for the services anticipated to be furnished to the participant, beneficiary, or enrollee by such nonparticipating provider