Missing Certificate of Interested Entities: 15 days after clerk's notice sent

15 days after date the court of appeal clerk sent the rule 8.208(d)(3) notice, under Cal. Rules of Court, rule 8.208(d)(3).

Rule text

(3) If a party fails to file a certificate as required under (1), the clerk must notify the party in writing that the party must file the certificate within 15 days after the clerk's notice is sent and that if the party fails to comply, the court may impose one of the following sanctions: (A) If the party is the appellant, the court may strike the document or dismiss the appeal; or (B) If the party is the respondent, the court may strike the document or decide the appeal on the record, the opening brief, and any oral argument by the appellant.

Cal. Rules of Court, rule 8.208(d)(3), official source

Calculate this deadline

Deadline
Monday, November 23, 2026
  1. Trigger (Date the Court of Appeal clerk SENT the rule 8.208(d)(3) notice): Friday, November 6, 2026.
  2. Exclude the trigger day and count 15 calendar days: Saturday, November 21, 2026.
  3. That day is a Saturday, so the deadline moves to the next court day: Monday, November 23, 2026 (Cal. Rules of Court, rules 1.10, 8.60(a); Cal. Code Civ. Proc. 12, 12a, 12b).
Rules applied
Cal. Rules of Court, rule 8.208(d)(3)
(3) If a party fails to file a certificate as required under (1), the clerk must notify the party in writing that the party must file the certificate within 15 days after the clerk's notice is sent and that if the party fails to comply, the court may impose one of the following sanctions: (A) If the party is the appellant, the court may strike the document or dismiss the appeal; or (B) If the party is the respondent, the court may strike the document or decide the appeal on the record, the opening brief, and any oral argument by the appellant.
Official source
Cal. Rules of Court, rules 1.10, 8.60(a); Cal. Code Civ. Proc. 12, 12a, 12b
CRC 1.10(a): "The time in which any act provided by these rules is to be performed is computed by excluding the first day and including the last, unless the last day is a Saturday, Sunday, or other legal holiday, and then it is also excluded." CRC 1.10(b): "Unless otherwise provided by law, if the last day for the performance of any act that is required by these rules to be performed within a specific period of time falls on a Saturday, Sunday, or other legal holiday, the period is extended to and includes the next day that is not a holiday." CRC 8.60(a): "The Code of Civil Procedure governs computing and extending the time to do any act required or permitted under these rules." 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."
Official source
  • Runs from when the notice is SENT; no service extension (conservative, consistent with existing rule brief_default_notice). The underlying duty (8.208(d)(1)) is same-day: the certificate is due with the party's first motion, application, or opposition in the Court of Appeal, or, if none, in its principal brief (after the cover, before the tables); see not_modeled.
  • 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 Court of Appeal clerk SENT the rule 8.208(d)(3) notice on Monday, March 15, 2027, personal service: due Tuesday, March 30, 2027.

  1. Trigger (Date the Court of Appeal clerk SENT the rule 8.208(d)(3) notice): Monday, March 15, 2027.
  2. Exclude the trigger day and count 15 calendar days: Tuesday, March 30, 2027.

Notes

Runs from when the notice is SENT; no service extension (conservative, consistent with existing rule brief_default_notice). The underlying duty (8.208(d)(1)) is same-day: the certificate is due with the party's first motion, application, or opposition in the Court of Appeal, or, if none, in its principal brief (after the cover, before the tables); see not_modeled.

Related deadlines

All California appeals and writs deadlines

Rules current as of 2026-10-23. Confirm against the official source and any local rule or court order before relying on a date. Rules changelog.