The Director of Developmental Services may provide 90-day advance funding to the designated agency or community-based programs for the development or provision of continuum services under the jurisdiction of the department.

Notwithstanding any other provision of law, any contract entered into by the department with a designated agency pursuant to this chapter may provide for periodic advance payments for services to be performed under such contract. No advance payment made pursuant to this section shall exceed 25 percent of the total annual contract amount.