; or (ii) section 1086(d) of this title by reason of being an individual who would be covered by section 1075(h) but for being a Medicare-eligible beneficiary covered by such section 1086(d). . (4) Enrollment in VA health care Section 1705 of title 38, United States Code, is amended by adding at the end the following new subsection: (d) (1) A covered veteran beneficiary who enrolls in the TRICARE program may not be concurrently enrolled in the system of patient enrollment under subsection (a), and the Secretary may not furnish medical care to the covered veteran beneficiary under this chapter or other provision of law administered by the Secretary while the covered veteran beneficiary is so enrolled in the TRICARE program. (2) In this subsection, the terms covered veteran beneficiary and TRICARE program have the meaning given those terms in section 1072 of title 10. . (b) Memorandum of understanding The Secretary of Veterans Affairs and the Secretary of Defense shall enter into a memorandum of understanding under which the Secretary of Veterans Affairs reimburses the Secretary of Defense for the costs of enrolling covered veteran beneficiaries in the TRICARE program pursuant to the amendments made by subsection (a), as jointly determined appropriate by the Secretaries. (c) Implementation (1) Effective date The amendments made by this section shall take effect one year after the date of the enactment of this Act. (2) Regulations During the one-year period following the date on which the amendments made by this section take effect, the Secretary of Veterans Affairs and the Secretary of Defense shall each prescribe regulations to carry out such amendments. (3) Phase in During the one-year period following the date on which the regulations are prescribed under paragraph (2), the Secretaries shall phase in the enrollment of covered veteran beneficiaries in accordance with the annual open enrollment season of the TRICARE program. (4) VA Center for Innovation for Care and Payment The Secretary of Veterans Affairs shall