Bates stamping is the process of applying sequential identification numbers to each page of documents produced in litigation, investigation, or transactional due diligence, enabling parties to precisely reference and track specific pages throughout the proceeding.
Last reviewed: 2026/05/19
Document production is the process of delivering to opposing parties in litigation or investigation the set of documents that are responsive to discovery requests, non-privileged, and within the scope of the applicable discovery order or agreement.
CapabilityE-discovery (electronic discovery) is the process of identifying, preserving, collecting, reviewing, and producing electronically stored information in response to litigation, investigations, or regulatory demands.
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Last reviewed: 2026/05/19. Definitions are written by the LawyerAI Editorial team. Commercial relationships are disclosed and do not determine editorial scores or conclusions. See our Sponsorship & Affiliate Disclosure.
Bates stamping is the process of applying sequential identification numbers to each page of documents produced in litigation, investigation, or transactional due diligence, enabling parties to precisely reference and track specific pages throughout the proceeding.
Bates numbering is a foundational document management practice in litigation and due diligence. Without unique page-level identification, referencing specific evidence in briefs, depositions, and trial is cumbersome and error-prone. "See the email attached to the contract as Exhibit 3" is far less precise — and far harder to locate in a large production — than "see DEF000234-35."
The Bates numbering system allows every exhibit, deposition reference, brief citation, and court filing to pinpoint exactly which pages are being referenced, in whose production they were produced, and where they appear in the document set. This precision is particularly important in complex commercial litigation where each party may have produced millions of pages across multiple productions.
In modern e-discovery, Bates numbering is handled automatically by e-discovery platforms during the production process. The manual stamp machines that gave the practice its name — after the Bates Manufacturing Company's numbering machine — have been replaced by software, but the function remains essential.
Lawyers should ensure that their production numbering conventions are defined at the outset of a matter — determining the prefix (typically a party or matter identifier), the number of digits, and the starting number — to avoid conflicts and confusion if multiple productions are made over the course of a case.
Bates stamping itself is not an AI-intensive function — it is a formatting and document processing step that e-discovery platforms handle automatically as part of production preparation. Relativity AI, Everlaw, and similar platforms apply Bates numbers to production documents during the processing and packaging phase, generating load files that associate each Bates number with the underlying document metadata.
The AI dimension in modern production workflows relates to what happens before the Bates numbers are applied: AI assists with document review, privilege classification, and redaction. The Bates numbering step follows once those determinations are made.
For practice management platforms used by smaller litigation firms — Clio, PracticePanther, Filevine — Bates stamping features range from basic sequential numbering tools to more sophisticated production management capabilities.
Where AI adds value in the Bates context is in production QC: checking that all Bates numbers in a production set are sequential, that no pages are missing or duplicated, and that the load file correctly maps each number to its document. These checks can be automated within production platforms to catch errors before the production is served.