You served Set One. Can you serve Set Two before the responses are due, and can you take Set One back?
Yes to the first, and the statute says so in terms: "If the initial set of interrogatories does not exhaust this limit, the balance may be propounded in subsequent sets." (CCP 2030.030(b).) Nothing anywhere in the Act conditions a later set on responses to an earlier one, and each set runs its own 30-day clock from its own service date under CCP 2030.260(a). The second question has no statutory answer at all, because the Act never addresses withdrawing a set. Which matters more than it sounds. The 35 specially prepared interrogatories are one budget per responding party, not one allowance per set, and the declaration that lets you exceed them counts what you "ha[ve] propounded," not what is still pending. So a withdrawal may cost you a set number and buy back nothing.
- Serve the next set before responses come in
- Yes, no waiting period. The only timing floor is the earliest date you could propound at all CCP 2030.020(a), defendant at any time; (b), plaintiff 10 days after service of the summons on, or appearance by, that party. Earlier only on leave for good cause, CCP 2030.020(d)
- When each set is due
- 30 days after service of that set, separately. Five calendar days added for mail within California, two court days for electronic service CCP 2030.260(a); CCP 1013(a), applied to discovery by CCP 2016.050; CCP 1010.6(a)(3)(B). Unlawful detainer is five days, CCP 2030.260(b)
- How many specially prepared interrogatories you get
- Thirty-five per responding party, counted across every set. Official form interrogatories are unlimited and sit outside the count CCP 2030.030(a)(1), (a)(2), (b)
- Going past 35
- Attach the declaration for additional discovery to each set that exceeds the limit. Propounding past 35 without it is a violation of the rule of 35, and the reported consequence is losing the motion to compel CCP 2030.050 for the form, CCP 2030.040(a)(1) through (3) for the grounds; Catanese v. Superior Court (1996) 46 Cal.App.4th 1159, 1165-1166, decided under former section 2030(c)
- If you exceed 35 without the declaration
- They answer the first 35 and object to the balance. CCP 2030.030(c), which requires the responding party to state the objection under CCP 2030.240 on the ground that the limit has been exceeded
- Set numbers
- Consecutive, and the number goes under the caption. CCP 2030.060(a), (b): the first paragraph immediately below the title of the case carries the propounding party, the set number and the responding party. I found no published decision construing subdivision (a)
- Withdrawing a set
- No statutory mechanism exists. Chapter 13 never uses the word, no published California decision addresses the effect of a withdrawal, and nothing says a withdrawn interrogatory stops counting toward the 35 Compare CCP 2033.300, which governs withdrawal of an admission and is a different thing entirely. The one agreement the Act does authorize is an extension of time, CCP 2030.270
- Supplemental interrogatories
- A separate allowance on top of the 35. Twice before the initial setting of a trial date, once after CCP 2030.070(a), (b). They reach only "later acquired information bearing on all answers previously made," so they are not a way to ask something new
On this page
Nothing makes the next set wait
The Act sets a floor on when you can start and a ceiling on when you must finish. Between those two points it says nothing about sequence.
The floor is CCP 2030.020. A defendant may propound interrogatories "without leave of court at any time." (Subd. (a).) A plaintiff may propound them without leave "at any time that is 10 days after the service of the summons on, or appearance by, that party, whichever occurs first." (Subd. (b).) Read that party by party. The clock runs against each responding party separately, so a plaintiff can be free to propound on a defendant served in March and not yet free as to one served last week. On motion, with or without notice, the court may grant leave to propound earlier for good cause. (Subd. (d).)
After that the Act is silent on ordering. Section 2030.260, subdivision (a) starts a 30-day clock "[w]ithin 30 days after service of interrogatories," which is a clock per service, not per case. Two sets served ten days apart produce two response dates ten days apart, and the second obligation does not wait for the first to mature. The only sequencing language in the entire chapter runs the other way: section 2030.030, subdivision (b) tells you that unused capacity "may be propounded in subsequent sets," which presupposes subsequent sets without conditioning them on anything.
"Except as provided in Section 2030.070, no party shall, as a matter of right, propound to any other party more than 35 specially prepared interrogatories. If the initial set of interrogatories does not exhaust this limit, the balance may be propounded in subsequent sets."
CCP 2030.030(b)
I found no published California decision holding that a party must wait for responses before serving the next set, and none holding that it may. The question appears never to have been litigated, which is what you would expect of a rule that nobody has tried to invent.
Two mechanical points that get missed on a second set. Every party who has appeared gets a copy of the set, the responding party included (CCP 2030.080(b)), and if you extend the response date by agreement, confirm it in a writing that specifies the extended date. An informal agreement is allowed, a writing is required, and without one you have an argument rather than an extension. (CCP 2030.270(a), (b).)
What the response has to mirror, and the three-court-day electronic exchange
The response carries the same identifying block you used: "the identity of the responding party, the set number, and the identity of the propounding party," in the first paragraph below the title of the case. (CCP 2030.210(b).) Each answer, option or objection bears "the same identifying number or letter" and sits "in the same sequence as the corresponding interrogatory," and the text of the interrogatory need not be repeated. (CCP 2030.210(c).)
There is a reciprocal electronic-format duty most practitioners never invoke. On request by the responding party, you must provide the interrogatories in an electronic format within three court days; on your request after responses arrive, they must provide the responses in an electronic format within three court days. Plain text if the parties cannot agree on a format, email if they cannot agree on a method. Neither side has to create an electronic version of something that was never electronic. A responding party who requests and receives the electronic version must then include the text of each interrogatory immediately before its response. (CCP 2030.210(d)(1) through (6).)
The ceiling is the discovery cutoff, and it runs backward from trial
Serving a set is not completing discovery. The response has to be due on or before the cutoff, so the last safe service date is the cutoff less 30 days less whatever the service method adds.
A party is entitled as a matter of right "to complete discovery proceedings on or before the 30th day, and to have motions concerning discovery heard on or before the 15th day, before the date initially set for the trial of the action." (CCP 2024.020(a).) The phrase that bites is "the date initially set." A continuance or postponement of the trial date "does not operate to reopen discovery proceedings" absent relief under section 2024.050. (CCP 2024.020(b).)
So a set served too close to trial is not late in the ordinary sense, where an extension fixes it. It is a set whose responses come due after the point at which the responding party was entitled to be finished, and the continuance you get later does not undo that. Work the date backward before you serve, not after.
The date arithmetic lives on the calculator. The 30-day response date, the five-calendar-day mail extension, the two-court-day electronic extension and the 30-day discovery cutoff all interact, and court holidays move the court-day counts.
CalCourtDeadlines.com runs each one with the governing section behind it.
The 35 is one budget per responding party, not one per set
This is the point the whole page turns on, and the set structure is what hides it.
Section 2030.030, subdivision (a) gives a party "[t]hirty-five specially prepared interrogatories that are relevant to the subject matter of the pending action," plus "[a]ny additional number of official form interrogatories." Subdivision (b) then measures the cap against a responding party, not a set: no party shall "propound to any other party" more than 35 as a matter of right. A set is a delivery, not an allowance. Three sets of twenty specially prepared interrogatories to one defendant is sixty interrogatories and a problem, not three lawful sets.
Two rules keep the count honest. Each specially prepared interrogatory must be "full and complete in and of itself," and no specially prepared interrogatory "shall contain subparts, or a compound, conjunctive, or disjunctive question." (CCP 2030.060(d), (f).) Those two subdivisions exist to "prevent evasion of the statutory limit on the number of interrogatories that one party may propound to another." (Clement v. Alegre (2009) 177 Cal.App.4th 1277, 1288.) The Legislature's concern, as the court read it, was "to 'prevent wrangling' about whether the propounding party is attempting to evade the 35 question limit." (Id. at p. 1289.)
Which cuts both ways, and Clement is worth reading for the other edge. The court affirmed a sanctions award against a responding party that had seized on technical defects in the interrogatories to avoid answering them. A count argument made in bad faith is a sanctions exposure, not a free objection.
One category sits outside the 35 and is easy to forget on a second set. Supplemental interrogatories under section 2030.070 come "[i]n addition to the number of interrogatories permitted by Sections 2030.030 and 2030.040," and you get two before the initial setting of a trial date and one after, subject to the Chapter 8 time limits. (Subds. (a), (b).) Their reach is narrow. A supplemental interrogatory elicits "later acquired information bearing on all answers previously made," so it refreshes what was already asked and does not open a new subject.
The declaration for additional discovery, and what it asks you to admit
It is not a cover sheet. Paragraph 4 makes you state your running total, which is why the count matters before you draft rather than after.
A party "who is propounding or has propounded more than 35 specially prepared interrogatories to any other party shall attach to each set of those interrogatories a declaration" in substantially the statutory form. (CCP 2030.050.) Read "each set." Once you cross the line, the declaration rides with the set that crossed it and with every set you serve after that.
The form itself does the work that catches people out. Paragraph 4 requires you to state how many interrogatories you have "previously propounded" to that party and how many of them were not official form interrogatories. Paragraph 5 requires the count in the current set. Paragraph 8 requires you to name the section 2030.040 factor you rely on and say why it applies to this case, not to cases generally. Paragraph 9 requires you to declare that none of the questions is propounded for an improper purpose. All of it under penalty of perjury.
The three available grounds are complexity or quantity of issues, the financial burden of taking the discovery by oral deposition instead, and the expedience of giving the responding party the chance to search its own files and records. (CCP 2030.040(a)(1) through (3).) If the responding party moves for a protective order on the ground that the number is unwarranted, "the propounding party shall have the burden of justifying the number." (CCP 2030.040(b).) That is a real allocation. The declaration is not presumed correct, and section 2030.090, subdivision (b)(2) authorizes an order that, "contrary to the representations made in a declaration submitted under Section 2030.050, the number of specially prepared interrogatories is unwarranted." Whoever loses that motion faces mandatory monetary sanctions absent substantial justification. (CCP 2030.090(d).)
Skip the declaration and the statutory consequence is narrow on its face: the responding party "need only respond to the first 35 specially prepared interrogatories served, if that party states an objection to the balance, under Section 2030.240, on the ground that the limit has been exceeded." (CCP 2030.030(c).) The reported consequence is worse than that. In Catanese v. Superior Court the propounding party filed no declaration and instead treated her interrogatories as consisting of five questions, which the court found effectively posed upwards of 10,000. It "was a violation of the 'rule of 35' to propound these interrogatories without the supporting declaration," and the court issued a peremptory writ directing the trial court to vacate its order granting the motion to compel further answers. (46 Cal.App.4th at pp. 1165-1166.)
Catanese was decided under the former statute, and you have to map the subdivisions
Catanese construes former section 2030, subdivision (c), before the 2004 reorganization of the Discovery Act broke that subdivision into separate sections. Former section 2030(c)(1) is now CCP 2030.030(a)(1) and (b); former (c)(2) is now CCP 2030.040(a); former (c)(3), the declaration, is now CCP 2030.050; and former (c)(5), the full-and-complete and no-subparts rules, is now CCP 2030.060(d) and (f). Quote the opinion with the former numbers and give the current section parenthetically.
The other thing to know before leaning on it: the interrogatories in Catanese were extreme, and the holding is entangled with the subparts rule rather than resting on a pure headcount. It is strong authority that propounding past the limit without a declaration is a violation. It is thinner authority for what happens when the overage is four questions and the questions are clean.
Set numbers are consecutive, and a second Set One is a defect on the face of the set
The requirement is explicit. The consequence of breaching it is not, which is a different problem.
"A party propounding interrogatories shall number each set of interrogatories consecutively." (CCP 2030.060(a).) And "[i]n the first paragraph immediately below the title of the case, there shall appear the identity of the propounding party, the set number, and the identity of the responding party." (Subd. (b).) Reading those two together, the sequence is kept per propounding party against each responding party, so your Set One to the developer and your Set One to the framing subcontractor are both Set One, and the developer's next set is Set Two whatever anyone else has served.
Serving a second document labeled Set One, or serving a Set One after a Set Two has already gone out, is a defect visible on the caption page. What it costs is less clear. I found no published California decision construing subdivision (a), no decision addressing a duplicate or out-of-order set number, and no sanction in the Act attached to the numbering requirement. The waiver provision in section 2030.290 runs against a responding party who fails to respond, not against a propounding party who miscounts.
So the realistic cost is an objection, a meet and confer, and a set you have to renumber and serve again, which spends days you may not have against the section 2024.020(a) cutoff. The larger cost is the one nobody notices: once the numbering is unreliable, the running total against the 35 is unreliable too, and that total is what paragraph 4 of the declaration and any protective order motion will turn on. Do not backfill. If a set went out of order, number the next one where the sequence actually is and say so in the cover letter.
Withdrawing a set, and the three things it does not do
The Discovery Act has no withdrawal mechanism for propounded discovery. Everything practitioners do here rests on agreement, so get the agreement.
Chapter 13 does not use the word. The place "withdraw" does appear in the Act is section 2033.300, which governs withdrawal of an admission and requires leave of court on a showing of mistake, inadvertence or excusable neglect. That is a responding party's remedy for something already deemed admitted, and it is a false friend here. I found no published California decision addressing whether a propounding party may withdraw a served set, or what withdrawal does.
What the Act does give you is section 2030.270, an agreement to extend the time to respond, informal but confirmed in a writing that specifies the extended date, and which by default preserves the responding party's right to respond in any manner otherwise available. That is the only party-to-party agreement about a pending set the statute expressly blesses. Nothing authorizes cancelling one.
In practice, a notice of withdrawal served on the responding party and every appearing party before responses come due ends the dispute, because the responding party has no reason to object to being relieved of work. Treat that as a working custom rather than a rule, and do the two-minute version properly: a short stipulation, signed, stating that no response to the withdrawn set is due, that the withdrawn interrogatories do not count against the limit in section 2030.030(b), and what number the next set carries. Each of those three is a question the statute leaves open, and each is cheap to close while nobody is fighting about it.
Three things withdrawal does not do.
It does not clearly refund the 35. The cap in section 2030.030(b) runs on what a party may "propound," and the declaration requirement in section 2030.050 is triggered where a party "is propounding or has propounded" more than 35. The past tense is the problem. Textually the trigger is what went out the door, not what is still live, and I found no authority either way. If the count is why you are withdrawing, the stipulation is not optional.
It does not unring responses already served. A verified response is evidence the propounding party may use against the responding party at trial. (CCP 2030.410.) Withdrawing the question afterward does not retract the answer, and the responding party's own route to fix a bad answer is an amended response under CCP 2030.310(a), which is theirs to take and not yours.
It does not moot a pending sanctions request. Monetary sanctions on a discovery motion attach to the making or opposing of the motion, not to the continued existence of the request. (CCP 2030.290(c); CCP 2030.300(d).) And serving sets in a pattern that runs up the other side's costs is itself a listed misuse: "[e]mploying a discovery method in a manner or to an extent that causes unwarranted annoyance, embarrassment, or oppression, or undue burden and expense." (CCP 2023.010(c).) One withdrawal is housekeeping. A habit of serving and pulling is an exhibit.
A note on how this runs in practice. Withdrawal is rare enough that a San Diego civil practitioner can go years without seeing one, which is part of why the question has no settled answer. There is almost no practice to draw a custom from. The working expectation among counsel is that a withdrawn set would not be counted against the 35, and a responding party relieved of the work has little reason to fight about it. That expectation is not authority. No department has published a view on it, the text of section 2030.050 points the other way, and if the number is ever put in issue the propounding party carries the burden of justifying it. CCP 2030.040(b). Which is the argument for spending two minutes on the stipulation while nobody is fighting.
What breaks if you get this wrong
You propound past 35 without the declaration, they object to the balance, and the fix lands after the discovery cutoff.
The responding party answers the first 35 and objects to the rest. CCP 2030.030(c). Propounding without the declaration is a violation of the rule of 35 and the order compelling further answers gets vacated on writ. Catanese, 46 Cal.App.4th at pp. 1165-1166. Re-serving with a declaration restarts a 30-day clock, and a trial continuance does not reopen discovery. CCP 2024.020(b).
You withdraw Set One assuming the 35 resets, serve a fresh 35 with no declaration, and the same objection lands too late to fix.
Nothing says a withdrawn interrogatory stops counting, and CCP 2030.050 is triggered by what a party "has propounded." No published authority resolves it, so a stipulation is the only version of this that is safe. The cutoff does the rest. CCP 2024.020(a).
Your interrogatories carry subparts, so the real count is double what your caption says.
Each specially prepared interrogatory must be full and complete in itself and carry no subparts or compound, conjunctive or disjunctive question. CCP 2030.060(d), (f). Those subdivisions exist to prevent evasion of the numerical limit. Clement v. Alegre, 177 Cal.App.4th at p. 1288. Fixable by rewriting and re-serving, at the price of a set number and 30 more days.
A second document goes out labeled Set One, or a Set One follows a Set Two.
Sets must be numbered consecutively and the number appears in the first paragraph below the caption. CCP 2030.060(a), (b). No published decision construes subdivision (a) and the Act attaches no sanction, so the cost is an objection, a meet and confer and a re-service. The hidden cost is that your running total against the 35 is now wrong.
You grant or take an extension on the phone and never paper it.
The agreement may be informal but "it shall be confirmed in a writing that specifies the extended date for service of a response." CCP 2030.270(b). Without the writing you are arguing about what was said, and the responding party is arguing about a waiver under CCP 2030.290(a).
You count on the responding party not noticing the overage.
Section 2030.030(c) does require them to state the objection, so an overage sometimes gets answered. It is a plan that works until the one time it matters, and it puts you in front of a judge explaining why you never filed the declaration.
Before you serve the next set
Eight things, in order
- Count what you have already propounded on that responding party, across every set, form interrogatories separated out. This is the number paragraph 4 of the CCP 2030.050 declaration asks for.
- Count subparts as interrogatories. If a question has an "and" or an "or" doing real work, it is two. CCP 2030.060(f).
- Decide the declaration question before you draft, not after. If the new set crosses 35, the declaration attaches to it and to every set after it, and paragraph 8 has to name a CCP 2030.040(a) factor and tie it to this case.
- Check the set number against what actually went out to this party, and put the propounding party, the set number and the responding party in the first paragraph below the caption. CCP 2030.060(a), (b).
- Work the response date backward from the cutoff. Thirty days plus five calendar days for in-state mail or two court days for electronic service, and it has to land on or before the 30th day before the date initially set for trial. CCP 2030.260(a); CCP 2024.020(a).
- Serve every appearing party. The duty reaches past the party answering. CCP 2030.080(b).
- If you are withdrawing a set, paper it as a stipulation covering all three open questions: no response due, the withdrawn interrogatories do not count against the limit, and the number the next set carries.
- Calendar the 45 days from the verified response for a motion for further responses, separately for each set. CCP 2030.300(c).