Cal. Civ. Proc. Code § 1518
(a)
(1) All tangible personal property located in this state and, subject to Section 1510, all intangible personal property, including intangible personal property maintained in a deposit or account, and the income or increment on such tangible or intangible property, held in a fiduciary capacity for the benefit of another person escheats to this state if for more than three years after it becomes payable or distributable, the owner has not done any of the following:
(2) Notwithstanding paragraph (1), tangible or intangible property, and the income or increment on the tangible or intangible property, held in a fiduciary capacity for another person shall not escheat to the state if the requirements of subparagraphs (A) and (B) are satisfied.
(A) During the previous three years, the fiduciary took one of the following actions:
(b) Funds in an individual retirement account or a retirement plan for self-employed individuals or similar account or plan established pursuant to the internal revenue laws of the United States or of this state are not payable or distributable within the meaning of subdivision (a) unless either of the following is true: