(a) The applicant shall bill all third-party carriers including Medi-Cal, Medicare and private insurance carriers and shall facilitate participation in such insurance programs for all eligible persons.(b) Charges for services by project personnel shall be set at a rate designed to recover the cost of services. Each person receiving services from project personnel and not covered by a third-party carrier shall be charged according to a sliding fee schedule based on ability to pay. No person shall be refused needed service because of inability to pay. The schedule of charges for each project shall be subject to approval by the Department.Cal. Code Regs. Tit. 22, § 40235