Cal. Rev. & Tax. Code § 19554
(b) Subject to the limitations of this section and Section 6103(d) of the Internal Revenue Code, the Franchise Tax Board may provide the Controller, on an annual basis, with the following information from business entity income tax returns or other business entity records maintained by the Franchise Tax Board:
(7) Whether the taxpayer previously filed an unclaimed property report with the Controller, and, if applicable, both of the following:
(c)
(d) For purposes of this section: