GOV § 21541.5

Any child whose benefits under Section 21541 were terminated upon his or her adoption, pursuant to that section as it read prior to January 1, 2001, shall have those benefits restored as follows:

(a) The child shall receive a lump-sum payment in the amount that would have paid, if he or she had not been adopted, from the date of adoption to the earlier of (1) the date his or her eligibility for benefits under Section 21541 would have otherwise terminated had he or she not been adopted or (2) January 1, 2001.

(b) If on January 1, 2001, the child is eligible for benefits under Section 21541, he or she shall receive benefits from and after that date pursuant to Section 21541.