All regulations heretofore adopted by the Director of the State Department of Benefit Payments which relate to payment, accounting, auditing and collection functions vested in the State Department of Health Services, or by the State Department of Health or any predecessor department which relate to health care services or medical assistance functions vested in the State Department of Health Services, and which are in effect immediately preceding the operative date of this section, shall remain in effect and shall be fully enforceable unless and until readopted, amended or repealed by the State Director of Health Services.
Ca. Welf. and Inst. Code § 10726