California Code, Probate Code - PROB § 6806

Notwithstanding any other provision of law, a benefit consisting of money or other property distributable from a trust established under a plan providing health and welfare, pension, vacation, severance, retirement benefit, death benefit, unemployment insurance or similar benefits does not pass to or escheat to the state under this part but goes to the trust or fund from which it is distributable, subject to the provisions of Section 1521 of the Code of Civil Procedure. However, if such plan has terminated and the trust or fund has been distributed to the beneficiaries thereof prior to distribution of such benefit from the estate, such benefit passes to the state and escheats to the state under this part.