Cal. Welf. & Inst. Code § 11323.2
(a) Necessary supportive services shall be offered and available to every participant to enable them to participate in a program activity or to accept or maintain employment. Necessary supportive services shall also be offered and available to every individual who is not required to participate, but chooses to participate voluntarily, to allow them to participate in a program activity or to accept or maintain employment. A participant who is required to participate and who does not receive necessary supportive services shall have good cause for not participating under subdivision (f) of Section 11320.3. Supportive services shall be listed in the welfare-to-work plan or other agreement entered into between the county and participant pursuant to this article, supportive services shall include all of the following:
(1) Childcare.
(2) Diaper costs.
(3) Transportation costs.