involved. (v) The program establishes appropriate linkages and referral networks to other community resources and supports for eligible families. (vi) The program monitors the fidelity of program implementation to ensure that services are delivered pursuant to the specified model. (4) Priority for serving high-risk populations The State gives priority to providing services under the program to the following: (A) Eligible families who reside in communities in need of such services, as identified in the statewide needs assessment required under subsection (d)(1)(A). (B) Low-income eligible families. (C) Eligible families who are pregnant women who have not attained age 21. (D) Eligible families that have a history of child abuse or neglect or have had interactions with child welfare services. (E) Eligible families that have a history of substance abuse or need substance abuse treatment. (F) Eligible families that have users of tobacco products in the home. (G) Eligible families that are or have children with low student achievement. (H) Eligible families with children with developmental delays or disabilities. (I) Eligible families who, or that include individuals who, are serving or formerly served in the Armed Forces, including such families that have members of the Armed Forces who have had multiple deployments outside of the United States. (c) State plan amendment requirements A State seeking the approval of a State plan amendment under this section shall submit the amendment to the Secretary for approval, in such manner as the Secretary may require. The State plan amendment shall include the following: (1) A description of the populations to be served by the early childhood home visitation program involved, including specific information regarding how the program will serve high risk populations described in subsection (b)(4). (2) An assurance that the State, in carrying out the program, will give priority to serving low-income eligible families and eligible families who reside in at-risk communities