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139 STAT. 292 PUBLIC LAW 119–21—JULY 4, 2025 ‘‘(uu) PREVENTION OF ENROLLMENT UNDER MULTIPLE STATE PLANS.— ‘‘(1) IN GENERAL.—Not later than October 1, 2029, the Secretary shall establish a system to be utilized by the Sec- retary and States to prevent an individual from being simulta- neously enrolled under the State plans (or waivers of such plans) of multiple States. Such system shall— ‘‘(A) provide for the receipt of information submitted by a State under subsection (a)(88)(B)(i); and ‘‘(B) not less than once each month, transmit informa- tion to a State (or allow the Secretary to transmit informa- tion to a State) regarding whether an individual enrolled or seeking to enroll under the State plan of such State (or waiver of such plan) is enrolled under the State plan (or waiver of such plan) of another State. ‘‘(2) STANDARDS.—The Secretary shall establish such stand- ards as determined necessary by the Secretary to limit and protect information submitted under such system and ensure the privacy of such information, consistent with subsection (a)(7). ‘‘(3) IMPLEMENTATION FUNDING.—There are appropriated to the Administrator of the Centers for Medicare & Medicaid Services, out of amounts in the Treasury not otherwise appro- priated, in addition to amounts otherwise available— ‘‘(A) for fiscal year 2026, $10,000,000 for purposes of establishing the system and standards required under this subsection, to remain available until expended; and ‘‘(B) for fiscal year 2029, $20,000,000 for purposes of maintaining such system, to remain available until expended. ‘‘(vv) PROCESS TO OBTAIN ENROLLEE ADDRESS INFORMATION.— ‘‘(1) IN GENERAL.—For purposes of subsection (a)(88)(A), a process to regularly obtain address information for individuals enrolled under a State plan (or a waiver of such plan) shall obtain address information from reliable data sources described in paragraph (2) and take such actions as the Secretary shall specify with respect to any changes to such address based on such information. ‘‘(2) RELIABLE DATA SOURCES DESCRIBED.—For purposes of paragraph (1), the reliable data sources described in this para- graph are the following: ‘‘(A) Mail returned to the State by the United States Postal Service with a forwarding address. ‘‘(B) The National Change of Address Database main- tained by the United States Postal Service. ‘‘(C) A managed care entity (as defined in section 1932(a)(1)(B)) or prepaid inpatient health plan or prepaid ambulatory health plan (as such terms are defined in sec- tion 1903(m)(9)(D)) that has a contract under the State plan if the address information is provided to such entity or plan directly from, or verified by such entity or plan directly with, such individual. ‘‘(D) Other data sources as identified by the State and approved by the Secretary.’’. (2) CONFORMING AMENDMENTS.— (A) PARIS.—Section 1903(r)(3) of the Social Security Act (42 U.S.C. 1396b(r)(3)) is amended— Time periods. Time period. Deadline.