In this division, unless otherwise expressly provided:
(a) A reference to a statute or to a regulation includes the statute or regulation, as amended, whether before or after the effective date of this division, as well as any new statute or regulation substituted for the statute or regulation after the effective date of this division.
(b) A reference to a governmental agency or to a public officer includes any governmental agency or public officer which succeeds after the effective date of this division to substantially the same functions as those performed by the governmental agency or public officer on the effective date of this division.