Cal. PROB § 1991

(a) In this article:

(1) “Emergency” means a circumstance that likely will result in substantial harm to a proposed conservatee’s health, safety, or welfare, and for which the appointment of a conservator of the person is necessary because no other person has authority and is willing to act on behalf of the proposed conservatee.

(2) “Home state” means the state in which the proposed conservatee was physically present, including any period of temporary absence, for at least six consecutive months immediately before the filing of a petition for a conservatorship order, or, if none, the state in which the proposed conservatee was physically present, including any period of temporary absence, for at least six consecutive months ending within the six months prior to the filing of the petition.

(3) “Significant-connection state” means a state, other than the home state, with which a proposed conservatee has a significant connection other than mere physical presence and in which substantial evidence concerning the proposed conservatee is available.

(b) In determining under Section 1993 and subdivision (e) of Section 2001 whether a proposed conservatee has a significant connection with a particular state, the court shall consider all of the following:

(1) The location of the proposed conservatee’s family and other persons required to be notified of the conservatorship proceeding.

(2) The length of time the proposed conservatee at any time was physically present in the state and the duration of any absence.

(3) The location of the proposed conservatee’s property.

(4) The extent to which the proposed conservatee has ties to the state such as voting registration, state or local tax return filing, vehicle registration, driver’s license, social relationship, and receipt of services.