California discovery objections are the formal grounds a responding party uses to refuse or limit answers to interrogatories, document demands, and other discovery requests, and the Code of Civil Procedure governs which grounds work, how they must be stated, and when they must be served. Get the deadline wrong and every objection disappears, including privilege. Get the substance wrong and the court overrules you and may order you to pay the other side’s fees. The objections themselves are not complicated, but the rules around them are unforgiving.
Serve Your Objections Within 30 Days or Lose Them
You have 30 days from service of the discovery request to deliver your response, objections included.1California Legislative Information. California Code of Civil Procedure 2030.260 If the request came by mail within California, CCP 1013 adds five calendar days.2California Legislative Information. California Code of Civil Procedure 1013 Unlawful detainer cases compress that to five days.
Missing the deadline is the most damaging mistake you can make in California discovery. A party that fails to serve timely responses waives every objection to the request, including attorney-client privilege and work product.3California Legislative Information. California Code of Civil Procedure 2030.290 The same waiver applies to document demands.4California Legislative Information. California Code of Civil Procedure 2031.300 A court can relieve you from the waiver, but only if your late response substantially complies with the code and the delay resulted from mistake, inadvertence, or excusable neglect. That’s a hard standard, and poor calendaring is not going to meet it.
One more universal rule before the grounds themselves: objecting to part of a request does not excuse answering the rest. Any portion of a request that is not objectionable must be answered.
Relevance and Scope
California permits discovery of any non-privileged matter relevant to the subject matter of the action, as long as it is admissible or reasonably calculated to lead to admissible evidence.5California Legislative Information. California Code of Civil Procedure 2017.010 That standard is deliberately broad and reaches the claims and defenses of every party, plus the identity and location of people with knowledge of discoverable facts.
Even so, scope has limits. You can object that a request has no reasonable connection to the claims or defenses in the case. Temporal scope is a frequent flashpoint: requests sweeping in years before or after the events in the lawsuit often draw legitimate objections. So do requests covering topics only tangentially related to the dispute. The court can also restrict discovery on its own if the information sought is unreasonably cumulative, duplicative, or available from a more convenient or less expensive source.6California Legislative Information. California Code of Civil Procedure 2019.030
A boilerplate “overbroad and irrelevant” with nothing more is the kind of objection courts routinely overrule. Explain how the request exceeds what the case is actually about.
Too Many Interrogatories
California caps specially prepared interrogatories at 35 per party absent a supporting declaration.7California Legislative Information. California Code of Civil Procedure 2030.030 Official form interrogatories do not count against the cap. If the other side serves more than 35 special interrogatories without the declaration, you can object to everything past the 35th and refuse to answer. The statute is explicit that you need only respond to the first 35. This is one of the few objections that is close to automatic.
Privilege and Protection
Privilege objections are the strongest shield in discovery because, properly invoked, they block disclosure entirely. California recognizes several categories, each with its own rules.
Attorney-Client Privilege
The attorney-client privilege lets a client refuse to disclose, and prevent others from disclosing, confidential communications with their lawyer made for the purpose of obtaining or providing legal advice.8California Legislative Information. California Evidence Code 954 Voluntary disclosure to outsiders waives the privilege. When properly invoked, it is absolute.
Work Product
The work product doctrine under CCP 2018.030 protects materials prepared by attorneys in anticipation of litigation on two tiers. An attorney’s personal impressions, conclusions, opinions, and legal theories get absolute protection. Other attorney work product, such as factual investigation materials or witness interview notes, gets qualified protection and can be ordered produced if withholding would unfairly prejudice the requesting party or cause injustice.
Right to Privacy
California’s Constitution protects the right to privacy in Article I, Section 1, and courts recognize it as a basis for objecting to requests that intrude on personal affairs. Financial records, medical history, employment files, and sexual history are common targets. The privacy right is not absolute. Courts balance the requesting party’s need against the privacy interest, and often fashion a compromise through redaction or a protective order limiting who can see the documents.
Trade Secret
Under Evidence Code 1060, the owner of a trade secret can refuse to disclose it and prevent others from doing so, as long as allowing the privilege would not conceal fraud or otherwise cause injustice.9California Legislative Information. California Evidence Code 1060 Courts often require the party asserting this privilege to describe the secret with enough specificity to evaluate the claim, and may allow discovery under an attorneys’-eyes-only protective order.
The Privilege Log
Stamping “privileged” on a response is not enough. When you withhold documents on privilege or work product grounds, your response must identify the documents being withheld with particularity, state the ground, and name the specific privilege.10California Legislative Information. California Code of Civil Procedure 2031.240 The response must supply enough factual information for the opposing party to evaluate the claim, which in practice means a privilege log listing each withheld document with its date, author, recipients, general subject matter, and the specific privilege asserted. A vague or incomplete log is one of the fastest ways to lose a privilege claim. Courts regularly order production where the log fails to permit meaningful evaluation.
Burden and Oppression
You can object that complying would be unreasonably burdensome or expensive relative to the value of the information to the case. CCP 2019.030 directs courts to restrict discovery methods that are unduly burdensome or expensive given the needs of the case, the amount in controversy, and the importance of the issues.6California Legislative Information. California Code of Civil Procedure 2019.030 Oppression objections go further, asserting the request was designed to harass rather than gather useful information.
Courts demand proof, not assertion. A one-line “unduly burdensome” objection will be overruled. Submit a declaration with specifics: how many documents must be reviewed, how many employee hours, estimated cost, and why that cost is disproportionate to what is at stake. Without that detail, the objection is dead on arrival.
Form of the Request
Form objections target how a request is drafted. Vagueness and ambiguity apply when you genuinely cannot tell what the request is asking for. A demand for “all documents related to the project” with no project, time period, or document type identified is a candidate.
Compound requests, which bundle multiple distinct questions into a single numbered interrogatory, draw objections as attempts to circumvent the 35-interrogatory cap. For document demands, the propounding party must describe each item or category with reasonable particularity, and a demand too vague to let you identify what documents are called for is objectionable on that ground. When a form objection is sustained, the other side usually must redraft with clearer language or a narrower scope.
Electronically Stored Information
ESI raises objections that paper does not. If a demand does not specify a format for electronic documents, you produce them either as ordinarily maintained or in a reasonably usable form.11California Legislative Information. California Code of Civil Procedure 2031.280 If you object to a specified format, your response must state the form you intend to use instead. You never have to produce the same electronic information in more than one format.
Cost is the bigger fight. When pulling data from backup tapes, legacy systems, or obsolete formats runs to tens of thousands of dollars, you can push for cost-shifting. CCP 2031.280(e) contemplates this by providing that translation of data compilations happens at the demanding party’s reasonable expense. Courts also have discretion under CCP 2023.030(f) to decline sanctions when ESI was lost through the routine, good-faith operation of an electronic system, which gives some breathing room for data overwritten before litigation was anticipated.12California Legislative Information. California Code of Civil Procedure 2023.030
When You Simply Don’t Have the Documents
Not every refusal to produce is an objection. If documents do not exist, have been lost, or belong to someone else, you provide a verified statement of inability to comply.13California Legislative Information. California Code of Civil Procedure 2031.230 The statement must affirm that a diligent search and reasonable inquiry has been made, specify whether the item never existed, was destroyed, was lost or stolen, or is no longer in your possession or control, and, if you believe someone else has it, give that person’s name and address. Casual “we don’t have it” language will not satisfy the rule.
Protective Orders When Objections Are Not Enough
When standard objections cannot do the job, you can ask the court for a protective order on a showing of good cause. The relief is flexible: excusing certain answers entirely, extending the response deadline, requiring responses only on specified terms, restricting disclosure of trade secrets or confidential commercial information, or sealing certain answers so they can be opened only by court order. The motion must include a meet and confer declaration showing you tried to resolve the issue informally first.
The 45-Day Window and the Risk of Sanctions
Once you serve objections, the other side has 45 days from service of your verified response to file a motion to compel further responses.14California Legislative Information. California Code of Civil Procedure 2031.310 If they miss that window, your objections stand. Before filing, they must make a good-faith attempt to resolve the dispute informally, documented by a declaration under CCP 2016.040.15California Legislative Information. California Code of Civil Procedure 2016.040 A single demand letter does not satisfy that duty. Expect a phone call or videoconference where they ask you to narrow or withdraw specific objections.
Objections that lack substantial justification are themselves a misuse of the discovery process, alongside evasive responses, disobeying court orders, and failing to confer in good faith.16California Legislative Information. California Code of Civil Procedure 2023.010 The sanctions ladder runs from monetary sanctions (payment of the other side’s reasonable expenses and attorney’s fees, which the court must impose when authorized unless you acted with substantial justification or the sanction would be unjust) through issue sanctions, evidence sanctions, contempt, and ultimately terminating sanctions that strike pleadings or enter default.12California Legislative Information. California Code of Civil Procedure 2023.030 Courts generally escalate, so a first dispute over objections usually ends at monetary sanctions. Terminating sanctions are reserved for repeated willful violations after lesser sanctions have failed. The practical lesson is simple: object when you have real grounds, support each objection with enough detail that it can survive review, and treat objections as a legal tool rather than a delay tactic.