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
Feb
16
ASC Ballot: Maintenance Request Package begins
Mar
06
Deadline for submitting code maintenance requests for member review of Batch 137
Mar
13
Batch 137 member review begins
Mar
18
ASC Ballot: Maintenance Request Package ends
Apr
03
Batch 137 member review ends
Apr
13
April Technical Assessment Meeting 1:30-3:30 PM ET Monday & Tuesday - 1:30-2:30 PM ET Wednesday
Apr
15
April PRB Meeting - 2:30-3 PM ET
May
01
Deadline for submitting code maintenance requests for member review of Batch 138
May
08
Batch 138 member review begins
May
29
Batch 138 member review ends
Jun
07
Summer 2026 X12 Standing Meeting Onsite in Philadelphia, PA 6/7-6/11/2026
Jun
15
Continuation of Summer X12J Technical Assessment meeting, 3-5 PM ET
Jun
17
Summer Procedures Review Board meeting, 3-3:30 PM ET
Jun
29
ASC Ballot: Maintenance Request Package begins
Jul
03
Deadline for submitting code maintenance requests for member review of Batch 139