SIMM Changes

February 2026

Section Action Type Changes
SIMM 5310-C Change Unlocked fields that should be editable (4.4.1). Fixed the appearance of fillable fields. Locked sections like related SIMMs and Related policies that were previously open to edit. Fixed the auto-populating behavior of the state entity and project name fields.
SIMM 5340-A Change Change Revised structure and content to reflect current operations. Consolidated incident reporting into one section and added material on purpose, plan requirements, TRP & Continuity Planning, and incident closure.
SIMM 5300-C Change Added CSF 2.0 sub-control references to map to ISPA program. Updated ID.AM-05.4, added CSF 2.0 sub-control references to map to ISPA and ISA program, removed duplicate NIST PM-6 references in GV.RM-03.
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