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Discovery: Responding to Interrogatories

Responding to Interrogatories

Interrogatories are written questions sent by one party to another, which the responding party must answer under penalty of perjury. Interrogatories allow the parties to ask who, what, when, where and why questions, making them a good method for obtaining new information.

There are two types of interrogatories: form interrogatories and special interrogatories. You may receive one or both types of interrogatories in your case.

Although these interrogatories look very different, the responses to both are similar. Your answers must be as complete and straightforward as possible (California Code of Civil Procedure (CCP) § 2030.220), and be accurate to the best of your knowledge. In addition, your responses must be "verified," meaning that you must sign under penalty of perjury that your responses are true and correct (CCP § 2030.250).

You have 30 days after the form or special interrogatories were served to you (35 days if served by mail from within California) to serve your responses to the interrogatories.


There is no Judicial Council form for this procedure. Instead, the relevant document must be typed on 28-line pleading paper. A customizable template may be downloaded from this link:

Click below to download a step-by-step guide with sample forms and instructions:

 Discovery: Respond to Interrogatories, Step by Step