A Maintenance Request (MR) is a request, submitted by an X12 member representative, implementer, or a materially interested member of the public, related to an enhancement of or revision to an X12 product.
Maintenance Request Portal for Members
X12 Winter 2026
Standing Meeting Materials
X12N Summer 2025 Standing Meeting Materials
iMeet Central
X12's primary work group, task group, subcommittee and committee collaboration tool for member representatives.
Future Meetings
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Important Dates
May
01
Deadline for submitting code maintenance requests for member review of Batch 138
May
03
2026-04-20 X12N Subcommittee 14-day Comment Period ends (if needed)
May
04
2026-05-04 X12N Subcommittee 14-day Comment Period begins (if needed)
May
08
Batch 138 member review begins
May
11
2026-05-11 X12N 14-day Subcommittee Electronic MR Ballot begins (if needed)
May
17
2026-05-04 X12N Subcommittee 14-day Comment Period ends (if needed)
May
18
2026-05-18 X12N Subcommittee 14-day Comment Period begins (if needed)
May
24
2026-05-11 X12N 14-day Subcommittee Electronic MR Ballot ends (if needed)
May
29
Batch 138 member review ends
May
31
2026-05-18 X12N Subcommittee 14-day Comment Period ends (if needed)
Jun
01
2026-06-01 X12N Subcommittee 14-day Comment Period begins (if needed)
Jun
07
Summer 2026 X12 Standing Meeting Onsite in Philadelphia, PA 6/7-6/11/2026
Jun
08
2026-06-08 X12N 14-day Subcommittee Electronic MR Ballot begins (if needed)
Jun
14
2026-06-01 X12N Subcommittee 14-day Comment Period ends (if needed)
Jun
15
Continuation of Summer X12J Technical Assessment meeting, 3-5 PM ET