California Probate Code
(a) This part applies to a transfer that refers to this part in the designation under subdivision (a) of Section 3909 by which the transfer is made if at the time of the transfer, the transferor, the minor, or the custodian is a resident of this state or the custodial property is located in this state. The custodianship so created remains subject to this part despite a subsequent change in residence of a transferor, the minor, or the custodian, or the removal of custodial property from this state.
(b) A person designated as custodian under this part is subject to personal
jurisdiction in this state with respect to any matter relating to the custodianship.
(c) A transfer that purports to be made and which is valid under the Uniform Transfers to Minors Act, the Uniform Gifts to Minors Act, or a substantially similar act, of another state is governed by the law of the designated state and may be executed and is enforceable in this state if at the time of the transfer, the transferor, the minor, or the custodian is a resident of the designated state or the custodial property is located in the designated state.