Section 2 Of Part 1. Preliminary Provisions From California Probate Code >> Division 1. >> Part 1.

. (a) A provision of this code, insofar as it is substantially the same as a previously existing provision relating to the same subject matter, shall be construed as a restatement and continuation thereof and not as a new enactment.
  (b) A provision of this code, insofar as it is the same in substance as a provision of a uniform act, shall be so construed as to effectuate the general purpose to make uniform the law in those states which enact that provision.