Cal. Welf. & Inst. Code § 18999.4

(a) (1) Pursuant to Section 18999.1, a grantee shall offer housing assistance to individuals described in subdivision (b) of Section 18999.2 and shall use funds received under this program to establish or expand programs that provide housing assistance, including interim housing, recuperative care, rental subsidies, or, only when necessary, shelters, for clients receiving services under Section 18999.2 during the clients’ application periods for disability benefits programs described in that section. The grantee shall make a reasonable effort to place a client who receives subsidies in housing that the client can sustain without a subsidy upon approval of disability benefits, or consider providing limited housing assistance until an alternative subsidy, affordable housing voucher, or other sustainable housing option is secured. Upon approval or denial of disability benefits, where needed, case management staff shall assist in developing a transition plan for housing support.

(b) To the extent authorized under federal law, a grantee, with the assistance of the department, shall seek reimbursement of funds used for housing assistance, general assistance, or general relief from the federal Commissioner of Social Security pursuant to an interim assistance reimbursement agreement authorized by Section 1631(g) of the federal Social Security Act, and shall expend funds received as reimbursement for housing assistance only on additional housing assistance for clients receiving services under this chapter.