Judicial arbitration: deliver documents, witness declarations, deposition notice (20 days)
20 days before date of the arbitration hearing, under Cal. Rules of Court, rule 3.823(b)(1)(A), (b)(2)(B), (b)(3)(A)(ii), (d).
Rule text
3.823(b)(1)(A): "The arbitrator must receive them in evidence if copies have been delivered to all opposing parties at least 20 days before the hearing." 3.823(d): "If service is by electronic means, the times prescribed in this rule for delivery of documents, notices, and demands are increased as provided by Code of Civil Procedure section 1010.6. If service is in the manner provided by Code of Civil Procedure section 1013, the times prescribed in this rule are increased as provided by that section."
Cal. Rules of Court, rule 3.823(b)(1)(A), (b)(2)(B), (b)(3)(A)(ii), (d), official source
Calculate this deadline
- Trigger (Date of the arbitration hearing): Friday, November 6, 2026.
- Count back 20 calendar days: Saturday, October 17, 2026.
- That day is a Saturday. Counting backward, this calculator uses the earlier court day so the full notice period is preserved: Friday, October 16, 2026 (see Cal. Code Civ. Proc. 12c).
Cal. Rules of Court, rule 3.823(b)(1)(A), (b)(2)(B), (b)(3)(A)(ii), (d)
3.823(b)(1)(A): "The arbitrator must receive them in evidence if copies have been delivered to all opposing parties at least 20 days before the hearing." 3.823(d): "If service is by electronic means, the times prescribed in this rule for delivery of documents, notices, and demands are increased as provided by Code of Civil Procedure section 1010.6. If service is in the manner provided by Code of Civil Procedure section 1013, the times prescribed in this rule are increased as provided by that section."Official source
Cal. Code Civ. Proc. 12, 12a, 12b, 10; Cal. Rules of Court, rule 1.10
CCP 12: "The time in which any act provided by law is to be done is computed by excluding the first day, and including the last, unless the last day is a holiday, and then it is also excluded." CCP 12a(a): "If the last day for the performance of any act provided or required by law to be performed within a specified period of time is a holiday, then that period is hereby extended to and including the next day that is not a holiday. For purposes of this section, “holiday” means all day on Saturdays, all holidays specified in Section 135 and, to the extent provided in Section 12b, all days that by terms of Section 12b are required to be considered as holidays." CCP 12b: "If any city, county, state, or public office, other than a branch office, is closed for the whole of any day, insofar as the business of that office is concerned, that day shall be considered as a holiday for the purposes of computing time under Sections 12 and 12a." CCP 10: "Holidays within the meaning of this code are every Sunday and any other days that are specified or provided for as judicial holidays in Section 135."Official source
- Counting backward from a hearing or trial, when the day lands on a weekend or holiday we use the earlier court day. The rules do not state the direction expressly; confirm with the court.
- Covers written reports and business documents (b)(1), declarations of other witnesses (b)(2)(B), and notice of intention to offer a deposition (b)(3)(A)(ii). Serve earlier by the mail/electronic add-on per (d).
- If the clerk's office is closed or inaccessible on the last day (weather, emergency or local closure orders), the deadline may be extended. Check local orders.
This calculator applies the cited rules to the dates you enter. It is not legal advice. Court orders, local rules, and case-specific facts can change a deadline; verify before relying on it. Rule set pending attorney review.
Worked example
Date of the arbitration hearing on Monday, March 15, 2027, personal service: due Tuesday, February 23, 2027.
- Trigger (Date of the arbitration hearing): Monday, March 15, 2027.
- Count back 20 calendar days: Tuesday, February 23, 2027.
Notes
Covers written reports and business documents (b)(1), declarations of other witnesses (b)(2)(B), and notice of intention to offer a deposition (b)(3)(A)(ii). Serve earlier by the mail/electronic add-on per (d).
Related deadlines
- Application to arbitrators to correct award (10 days after)
- Objection to application to correct award (10 days after)
- Arbitrators' correction deadline (deemed denial) (30 days after)
- Petition to vacate or correct arbitration award (100 days after)
- Response requesting vacatur or correction (to a petition to confirm) (100 days after)
- Petition to confirm arbitration award (outer limit) (48 months after)
- Earliest date to serve and file petition to confirm, correct, or vacate award (10 days after)
- Response to petition under the arbitration title (e.g. to confirm, vacate, compel) (10 days after)
Local rules by county
County local rules and courtroom procedures can add to or change this deadline. Pick a county to calculate with them applied.
- Alameda
- Alpine
- Amador
- Butte
- Calaveras
- Colusa
- Contra Costa
- Del Norte
- El Dorado
- Fresno
- Glenn
- Humboldt
- Imperial
- Inyo
- Kern
- Kings
- Lake
- Lassen
- Los Angeles
- Madera
- Marin
- Mariposa
- Mendocino
- Merced
- Modoc
- Mono
- Monterey
- Napa
- Nevada
- Orange
- Placer
- Plumas
- Riverside
- Sacramento
- San Benito
- San Bernardino
- San Diego
- San Francisco
- San Joaquin
- San Luis Obispo
- San Mateo
- Santa Barbara
- Santa Clara
- Santa Cruz
- Shasta
- Sierra
- Siskiyou
- Solano
- Sonoma
- Stanislaus
- Sutter
- Tehama
- Trinity
- Tulare
- Tuolumne
- Ventura
- Yolo
- Yuba
Rules current as of 2026-10-25. Confirm against the official source and any local rule or court order before relying on a date. Rules changelog.