S.D.N.Y. Discovery Disputes and Local Civil Rule 37.2
States the rules as of the EDNY/SDNY Joint Local Civil Rules as amended January 2026. This is a practical summary, not legal advice, and AsyncConfer is not a law firm. Rules, local rules and standing orders change — confirm against your court's current requirements before you rely on it.
The Southern and Eastern Districts of New York share one set of Local Civil Rules, substantially revised in 2024 and amended since. Two features shape discovery practice more than anything in the federal rules: you generally cannot file a discovery motion cold, and the individual judge’s rules do most of the real work.
You ask for a conference before you move
Under Local Civil Rule 37.2, a discovery motion in the Southern District is not the first step. Counsel must first confer in good faith with the other side — in person or by telephone — to try to resolve the dispute. If that fails, the party seeking relief applies to the court for an informal conference rather than filing a motion.
In practice this is done by letter-motion: a short letter, typically limited to around three pages, describing the nature of the dispute, why the party is entitled to relief, and requesting the conference. Any such letter-motion is expected to represent that the meet-and-confer process happened and did not resolve the issue.
The practical effect is that the letter is the filing that matters. Many discovery disputes in this district are resolved at or shortly after the conference and never become a briefed motion at all. A letter that is precise about what was sought, what was offered and what remains open tends to get resolved; one that recites grievances tends to produce another conference.
Note that Local Civil Rule 37.3, the Eastern District’s separate mechanism for raising nondispositive disputes, has been withdrawn — do not rely on older secondary sources that describe it.
Read the individual practices first
This is not optional advice in S.D.N.Y. Individual judges’ rules govern the form of the letter, its length, whether attachments are permitted, how many days the opposing party has to respond, and sometimes whether a joint letter is required instead of competing ones. Some judges require the parties to submit a single document setting out both positions.
A joint letter is worth pausing on, because it is the same drafting problem as a joint statement: two adverse parties producing one document under a page limit, usually in a few days. Reconstructing your own position is easy; agreeing the framing of the dispute is not.
Local Civil Rule 26.4: cooperation is a rule, not a courtesy
The joint rules say this directly:
Counsel are expected to cooperate with each other, consistent with the interests of their clients, in all phases of the discovery process and to be courteous in their dealings with each other, including in matters relating to scheduling and timing of various discovery procedures.
Rules like this are easy to skim past as aspirational. They are not — they give a judge something concrete to point at when one side has been obstructive about scheduling, and they are frequently cited in orders resolving exactly the disputes Rule 37.2 conferences are convened for. A record showing you proposed dates and accommodated theirs is worth having.
Local Civil Rule 26.3: use the uniform definitions
The district supplies uniform definitions and rules of construction for discovery requests — terms like “document,” “communication,” “identify,” “person,” “concerning,” and the construction of “all/any/each” and “and/or.”
Two consequences. Your requests should not restate these definitions, and an objection that a request is vague as to a defined term is weak. Drafting against the uniform definitions is the single easiest way to reduce the surface area of a later dispute.
A working sequence
- Confer live, in person or by telephone. Rule 37.2 contemplates a genuine attempt, and a letter alone is not it.
- Narrow first. Whatever survives is what the letter is about, and short letters get better outcomes than comprehensive ones.
- Check the judge’s individual practices for form, length, timing and whether the submission is joint.
- Write from a record, not from recollection — the letter has to state what was sought and what was refused, per item.
- Treat the conference as the resolution, because it usually is.
Where the workspace fits
Everything above rewards the same thing: an item-level record of what each side proposed and when, and — where the judge wants a joint submission — a way to produce one document with an adverse party without a week of attachments going back and forth.
That is the shape AsyncConfer gives a conferral. Each disputed item carries its own proposal, response and timestamp, so the letter states facts rather than characterisations, and the agreed framing compiles into a single document with the genuinely disputed positions set out side by side. For the underlying federal standard, see the Rule 37(a)(1) good-faith certification.