; (2) by redesignating paragraph (2) as paragraph (3); and (3) by inserting after paragraph (1) the following new paragraph: (2) Exception for public health emergencies Nothing in this section shall be construed as preventing a home health agency furnishing a home health unit of service for which payment is made under the prospective payment system established by this section for such units of service from furnishing services via a video or audio telecommunication system if such services— (A) are furnished pursuant to a waiver under section 1135(b)(9); (B) constitute no more than 50 percent of the number of billable visits, consistent with the in-person visit equivalency determination, billed under the 30-day period of care established under section 484.215(f) of title 42, Code of Federal Regulations; (C) are furnished to a beneficiary under a plan of care established by a physician or practitioner with whom the beneficiary has an existing care relationship prior to the receipt of home health services that includes home health services to be furnished via a video or audio telecommunication system; and (D) such beneficiary consents to receiving home health services via a video or audio telecommunication system. . (c) Implementation (1) In general The Secretary shall prescribe regulations to apply to home health services furnished pursuant to the amendments made by this Act, which shall become effective no later than 60 days after the date of enactment of this Act. The Secretary shall issue an interim final rule, if necessary, to comply with the required effective date. (2) Considerations In prescribing such regulations, the Secretary may consider including— (A) standards for the content of orders and patient consent for such services; (B) documentation of such services provided and billing units of such services