The county welfare department or probation department or Indian tribe, as appropriate, at the time of the Kin-GAP annual redetermination, shall meet with the relative guardian and the nonfederally eligible child and enter into a written agreement for the state-funded Kin-GAP program as described in Section 11364. This process shall continue for at least 12 calendar months or until all state-funded Kin-GAP cases as of the effective date described have been processed.