Add-on case: notice of opposition to request to coordinate

10 days after date the request (petition) to coordinate an add-on case was served, under Cal. Rules of Court, rule 3.544(b), (d).

Rule text

(b): "Within 10 days after the service of a request, any party may serve and submit a notice of opposition to the request. Thereafter, within 15 days after submitting a notice of opposition, the party must serve and submit a memorandum and declarations in opposition to the request. Failure to serve and submit a memorandum and declarations in opposition may be a ground for granting the request to coordinate an add-on case." (d): "If no party has filed a notice of opposition within the time required under (b), the coordination trial judge may enter an order granting or denying the request without a hearing."

Cal. Rules of Court, rule 3.544(b), (d), official source

Calculate this deadline

Deadline
Monday, November 16, 2026
  1. Trigger (Date the request (petition) to coordinate an add-on case was served): Friday, November 6, 2026.
  2. Exclude the trigger day and count 10 calendar days: Monday, November 16, 2026.
Rules applied
Cal. Rules of Court, rule 3.544(b), (d)
(b): "Within 10 days after the service of a request, any party may serve and submit a notice of opposition to the request. Thereafter, within 15 days after submitting a notice of opposition, the party must serve and submit a memorandum and declarations in opposition to the request. Failure to serve and submit a memorandum and declarations in opposition may be a ground for granting the request to coordinate an add-on case." (d): "If no party has filed a notice of opposition within the time required under (b), the coordination trial judge may enter an order granting or denying the request without a hearing."
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
  • Verified: 10 days after SERVICE of the add-on request (calendar days). If no notice of opposition is filed in time, the judge may rule without a hearing. CCP 1013 add-on applied (CRC 3.510(a)); do not rely on it given the consequence. Followed by coord_addon_opposition_memorandum.
  • 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 the request (petition) to coordinate an add-on case was served on Monday, March 15, 2027, personal service: due Thursday, March 25, 2027.

  1. Trigger (Date the request (petition) to coordinate an add-on case was served): Monday, March 15, 2027.
  2. Exclude the trigger day and count 10 calendar days: Thursday, March 25, 2027.

Notes

Verified: 10 days after SERVICE of the add-on request (calendar days). If no notice of opposition is filed in time, the judge may rule without a hearing. CCP 1013 add-on applied (CRC 3.510(a)); do not rely on it given the consequence. Followed by coord_addon_opposition_memorandum.

Related deadlines

All California civil deadlines

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.

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.