; or (B) any entity subject to the control of an entity described in subparagraph (A). (3) Limitation on applicability (A) In general Nothing in paragraph (1) shall prohibit the Secretary from entering into, renewing, or extending a contract for the procurement of goods, services, or technology to provide a service that connects to the facilities of a third party, including backhaul, roaming, or interconnection arrangements. (B) Existing contracts Nothing in this section shall permit the Secretary to apply the prohibitions in paragraph (1) to existing contracts for goods, services, or technology, including when such contracts are modified, extended, or renewed, entered into prior to the relevant date described in subsection (b). (C) Components Paragraph (1) shall not apply with respect to components (as defined in section 105 of title 41, United States Code). (4) Rulemaking (A) Entity prohibition Not later than one year after the date of the enactment of this Act, the Secretary shall amend the Defense Federal Acquisition Regulation Supplement to implement the prohibitions in paragraph (1)(A) for the Department of Defense. (B) Goods and services prohibition Not later than 545 days after the date of the enactment of this Act, the Secretary shall amend the Defense Federal Acquisition Regulation Supplement to implement the prohibitions in paragraph (1)(B) for the Department of Defense, including— (i) best practices to avoid being subject to the prohibitions described in paragraph (1)(B)