Section 2030.070.
Cal. Code of Civil Procedure - CCP § 2030.070.
in effect(a)
In addition to the number of interrogatories permitted by Sections 2030.030 and 2030.040, a party may propound a supplemental interrogatory to elicit any later acquired information bearing on all answers previously made by any party in response to interrogatories.
(b)
A party may propound a supplemental interrogatory twice before the initial setting of a trial date, and, subject to the time limits on discovery proceedings and motions
provided in Chapter 8 (commencing with Section 2024.010), once after the initial setting of a trial date.
(c)
Notwithstanding subdivisions (a) and (b), on motion, for good cause shown, the court may grant leave to a party to propound an additional number of supplemental interrogatories.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026