AMENDMENT TO THE CALIFORNIA RULES OF COURT Adopted by the Judicial Council on December 12, 2025, effective December 13, 2025, to read: 10 Rule 5.275. Standards for computer software to assist in determining support 1 2 (a)–(b) * * * 3 4 (

c) Expiration or revocation of certification 5 6

(1) Any certification provided by the Judicial Council under Family Code

section and this rule must expire one year from the date of its issuance unless another expiration date is set forth in the certification. The Judicial Council may provide for earlier expiration of a certification if (1) (

A) the provisions involving the calculation of tax consequences change or (2) (

B) other provisions involving the calculation of support change. 12 13

(2) The Judicial Council may revoke certification if a calculator is not submitted, 14 as requested, for review and testing to ensure its accuracy under (b)(2). 15 16 (Subd (

c) amended effective December 13, 2025; previously amended effective January 1, 17 2003.) 18 19 (d)–(i) * * * 20 21 (

j) Acceptability in the courts 22 23

(1) In all actions for child or family support brought by or otherwise involving the local child support agency under title IV-D of the Social Security Act, the Department of Child Support Services’ California Guideline Child Support Guideline Calculator software program must be used by: 27 28 (

A) Parties and attorneys to present support calculations to the court; and 29 30 (

B) The court to prepare support calculations. 31 32

(2) In the event the certification of the California Child Support Guideline Calculator is revoked under (

c) or the calculator is determined by Judicial Council staff to be inaccessible, the parties, attorneys, and court may use an alternate software program certified by the Judicial Council until the courts are notified by Judicial Council staff that the California Child Support Guideline Calculator has been recertified or is available for use again. 38 39 11 (2)

(3) In all nontitle IV-D proceedings, the court may use and must permit parties or attorneys to use any software certified by the Judicial Council under this rule. 3 4 (Subd (

j) amended effective December 13, 2025; adopted as subd (

k) effective January 1, 5 2000; previously relettered effective January 1, 2003; previously amended effective January 1, 2009.) 7 Rule 5.275 amended effective December 13, 2025; adopted as rule effective December 1, 9 1993; previously amended and renumbered as rule 5.275 effective January 1, 2003; previously amended effective January 1, 2000, January 1, 2007, January 1, 2009, January 1, 2016, and January 1, 2020. 12 13 14