(a) This part is operative on January 1, 2002.
(b) Except as provided in subdivision (c), this part applies to an instrument making a nonprobate transfer or creating a joint tenancy whether executed before, on, or after the operative date of this part.
(c) Sections 5600 and 5601 do not apply, and the applicable law in effect before the operative date of this part applies, to an instrument making a nonprobate transfer or creating a joint tenancy in either of the following circumstances:
(1) The person making the nonprobate transfer or creating the joint tenancy dies before the operative date of this part.
(2) The dissolution of marriage or other event that terminates the status of the nonprobate transfer beneficiary or joint tenant as a surviving spouse occurs before the operative date of this part.