This guide contains forms and instructions for responding to Requests for Production from your opponent in a California civil case. Form Interrogatories are a list of questions on a court form.A party has 30 days to respond to written discovery. This guide contains forms and instructions for scheduling a deposition of an opposing party or third party witness in a California civil case. Practical Last Day to Serve Discovery (and be able to make a motion on it) – 90-100 days before trial. Deposition Notice – Defendant may serve any time. This article will provide a general overview of federal discovery and deposition procedure, with particular attention to important changes made to the Rules. How long do you have to respond to discovery requests in California? It can be used in civil lawsuits in the Northern District Court of California. This template provides guidance only.