Welf. & Inst. Code, § 223.2

(a) The unpaid outstanding balance of any county-assessed or court-ordered costs imposed before January 1, 2018, pursuant to Section 207.2, 903, or 903.1, former Section 903.15, or Section 903.2, 903.25, 903.4, or 903.5 against the parent, guardian, or other person liable for the support of a minor is vacated and shall be unenforceable and uncollectable if the minor was adjudged to be a ward of the juvenile court, was on probation pursuant to Section 725, was the subject of a petition filed to adjudge the minor a ward, or was the subject of a program of supervision undertaken pursuant to Section 654. This subdivision applies to dual status children for purposes of delinquency jurisdiction.

(b) The unpaid outstanding balance of any county-assessed or court-ordered costs imposed before January 1, 2018, pursuant to Section 729.9 against a minor is vacated and shall be unenforceable and uncollectable. This subdivision applies to dual status children for purposes of delinquency jurisdiction.

(c) The unpaid outstanding balance of any county-assessed or court-ordered costs imposed before January 1, 2018, pursuant to Sections 1203.016, 1203.1ab, and 1208.2 of the Penal Code against adults who at the time were not adults who were over 21 years of age and were under the jurisdiction of the criminal court is vacated and shall be unenforceable and uncollectable.

(d) Upon the expiration of 10 years after the date of imposition of a restitution fine pursuant to Section 730.6 against a minor, any outstanding balance, including any collection fees, is vacated and shall be unenforceable and uncollectable.