2026-11-16 X12N Subcommittee 14-day Comment Period begins (if needed)
Section title: Section Title L2 Basic Pages
consensus-based, interoperable, syntax‑neutral data exchange standards
- Membership
X12 Members List
Alphabetized listing of current X12 members organizations.
Membership Benefits
Join other member organizations in continuously adapting the expansive vocabulary and language used by millions of organizations while leveraging more than 40 years of cross-industry standards development knowledge.
Membership Categories
Membership categories and associated dues are based on the size and type of organization or individual, as well as the committee you intend to participate with.
Membership Application
To apply for an X12 membership, complete and submit an application form which will be reviewed and verified, then you will be notified of the next steps. Some important considerations for your application include the type and size of your organization, your named primary representative, and committee-subcommittee you intend to participate with.
Renew Membership
To renew an X12 membership, complete and submit an application form which will be reviewed and verified, then you will be notified of the next steps. Some important considerations for your application include the type and size of your organization, your named primary representative, and committee-subcommittee you intend to participate with.
- Products
Glass
Online access to all available versions of X12 products, including The EDI Standard, Code Source Directory, Control Standards, EDI Standard Figures, Guidelines and Technical Reports.
Licensing Program
Multi-tier licensing categories are based on how licensees benefit from X12's work, replacing traditional one-size-fits-all approaches. Categories include Commercial, Internal, Developer and more.
External Code Lists
Technical Reports
X12 produces three types of documents to facilitate consistency across implementations of its work.
- Type 2: Reference Model
- Type 3: Implementation Guide
- Type 4: Clarification Paper
All X12 Transaction Sets
X12 defines and maintains transaction sets that establish the data content exchanged for specific business purposes. Each transaction set is maintained by a subcommittee operating within X12’s Accredited Standards Committee.
By Industry
X12 standards are the workhorse of business to business exchanges proven by the billions of daily transactions within and across many industries including:
- Finance
- Health Care
- Insurance
- Supply Chain
- Transportation
- Aerospace
Intellectual Property Use
X12 has developed standards and associated products to facilitate the transmission of electronic business messages for over 40 years. X12 manages the exclusive copyright to all standards, publications, and products, and such works do not constitute joint works of authorship eligible for joint copyright.
All X12 work products are copyrighted. Any use of any X12 work product must be compliant with US Copyright laws and X12 Intellectual Property policies.
- About
About X12
Chartered by the American National Standards Institute for more than 40 years, X12 develops and maintains EDI standards and XML schemas which drive business processes globally. X12's diverse membership includes technologists and business process experts in health care, insurance, transportation, finance, government, supply chain and other industries.
neX12
X12 standards are the workhorse of business to business exchanges proven by the billions of transactions based on X12 standards that are used daily in various industries including supply chain, transportation, government, finance, and health care. Millions of entities around the world have an established infrastructure that supports X12 transactions.
Introducing neX12...
X12 is well-positioned to continue to serve its members and the large install base by continuing to support the existing metadata, standards, and implementation tools while also focusing on several key collaborative initiatives.
- Glass: X12's Online Viewer
- Bridge: Standardized Syntax Neutral X12 Metadata
- ARC: Annual Release Cycle
Officers
X12 is led by the X12 Board of Directors (Board). The X12 Board and the Accredited Standards Committee’s Steering group (Steering) collaborate to ensure the best interests of X12 are served. Each group has specific responsibilities and the groups cooperatively handle items or issues that span the responsibilities of both groups.
Liaisons
X12 appoints various types of liaisons, including external and internal liaisons. Internal liaisons coordinate between two X12 groups. External liaisons represent X12's interests to another organization as defined in a formal agreement between the two organizations. More information is available in X12 Liaisons (CAP17).
Industry Groups and Caucuses
X12 welcomes the assembling of members with common interests as industry groups and caucuses.
Current and past groups and caucuses include:
- Clearinghouse Caucus
- Connectivity Caucus
- Dental Caucus
- Medicaid Caucus
- Provider Caucus
- Tricare Caucus
- Innovation Taskforce
Awards
X12 is pleased to recognize individual members and industry representatives whose contributions and achievements have played a role in the development of cross-industry eCommerce standards.
Edward A. Guilbert Lifetime Achievement Award
Terms, Policies, and Licenses
X12’s website terms of use, privacy policy, and license agreements, which you have agreed to based on your use of X12 resources and content.
- News + Events
News
X12 Blog
Meetings
Upcoming meetings:
Important Dates
March 6 – Deadline for submitting code maintenance requests for member review of Batch 137March 13 – Batch 137 member review beginsMarch 15 – 2026-03-02 X12N Subcommittee 14-day Comment Period endsMarch 16 – 2026-03-16 X12N Subcommittee 14-day Comment Period beginsMarch 18 – ASC Ballot: Maintenance Request Package endsMarch 29 – 2026-03-16 X12N Subcommittee 14-day Comment Period endsRelease Schedule
The EDI Standard is published once per year in January.
Proposed modifications to the current EDI Standard proceed through a series of ballots and must be approved by impacted subcommittees, the Technical Assessment Subcommittee (TAS), and the Accredited Standards Committee stakeholders in order to be included in the next publication.
The tables on this page depict the key dates for various steps in a normal modification/publication cycle.
X12 Recommendations to NCVHS
X12 has submitted recommendations related to advancing the version of already adopted and mandated transactions.
- Resources
Feedback
X12 welcomes feedback. Submit the form with any questions, comments, or suggestions related to corporate activities or programs. This feedback is used to inform X12's decision-making processes, policies, and question and answer resources. This form is not used to request maintenance (revisions) to X12 products or to submit comments related to an internal or public review period.
Policies and Procedures
X12 maintains policies and procedures that govern its corporate, committee, and subordinate group activities and posts them online to ensure they are easily accessible to members and other materially-interested parties.
Forms
Meeting Minutes
Browse and download meeting minutes by committee.
Requests for Interpretation
Review X12's official interpretations based on submitted RFIs related to the meaning and use of X12 Standards, Guidelines, and Technical Reports, including Technical Report Type 3 (TR3) implementation guidelines. Submit a request for interpretation (RFI) related to the implementation and use of X12 work.
Info Center
Information about the X12 organization, its activities, committees & subcommittees, tools, products, and processes. Information is presented as a PowerPoint deck, informational paper, educational material, or checklist. Content is added to this page regularly.
Information related to the X12 corporation is listed in the Corporate section below. Committee-level information is listed in each committee's separate section. Policies and procedures specific to a committee's subordinate groups, like subcommittees, task groups, action groups, and work groups, are also listed in the committee's section.
X12 EDI Standard Examples
Transaction Flow
X12 defines and maintains transaction sets that establish the data content exchanged for specific business purposes and, in some cases, implementation guides that describe the use of one or more transaction sets related to a single business purpose or use case. The diagrams on the following pages depict various exchanges between trading partners.
Membership & Licensing Help
For help on how to purchase, manage, or renew your X12 membership, license, or code list subscription, review these FAQs.Contact Us
Contact us through email, mail, or over the phone. All of our contact information is here.