Policy and procedures for implementation and enforcement of state and federal laws; consultation; guidelines; forms and instructions; 'prudent buyer' defined; criteria for selection of providers; notice of change in policy, procedure, form, or instruction; power of director; informal conference; imposition of specific conditions and controls; notice; hearings; examination of claims; imposition of claims review process; books and records of provider; confidentiality; immunity from liability; prohibited payments or recovery for payments; making payments and collecting overpayments; development of specifications; estimated cost and charge information; notice to provider of incorrect payment