California Code, Government Code - GOV § 75552

(a) After payment of a portion of the member's contributions to a nonmember pursuant to subdivision (b) of Section 75551, the member may redeposit the full amount in the fund at any time before he or she retires or otherwise leaves judicial office.  The redeposit shall include interest at the rate of interest then being required to be paid by members of the Public Employees' Retirement System under Section 20750 from the date of payment to the date of redeposit.  A partial redeposit shall not be accepted.

(b) After payment of a portion of the member's monetary credits to a nonmember pursuant to subdivision (c) of Section 75551, the member may redeposit the full amount in the fund at any time before he or she retires or otherwise leaves judicial office.  The redeposit shall include interest at the greater of:  (1) the rate of interest then being required to be paid by members of the Public Employees' Retirement System under Section 20750 from the date of payment to the date of redeposit; or (2) the compounded amounts that would have been credited to the member's monetary account pursuant to subdivision (b) of Section 75520 had the payment not been made to the nonmember.  A partial redeposit shall not be accepted.