Cal. Welf. & Inst. Code § 4631
(a) In order to provide to the greatest extent practicable a larger degree of uniformity and consistency in the services, funding, and administrative practices of regional centers throughout the state, the State Department of Developmental Services shall, in consultation with the regional centers, adopt regulations prescribing a uniform accounting system, a uniform budgeting and encumbrancing system, a systematic approach to administrative practices and procedures, and a uniform reporting system which shall include: