Congregate services programs assisted under this chapter must include full meal service adequate to meet nutritional needs, and may also include housekeeping aid, personal assistance, and other services essential for maintaining independent living.

No services funded under this chapter may duplicate services which are already affordable, accessible, and sufficiently available on a long-term basis to eligible project residents under programs administered by or receiving appropriations through any department, agency, or instrumentality of the Federal Government or any other public or private department, agency, or organization.