Exclusion Assessment Form

Regulatory Framework: IACS UR E26 Section 6 (Risk-Based Exclusion)

Doc ID: TAG-EXCL-GEN
Issue Date: Feb 2026
Rev: 1.2

System/Service:	[System Name]
OEM/Vendor:	[Vendor]	Physical Location:	[Deck/Room]

All items must be marked ‘YES’ to justify exclusion from the vessel’s Cyber Security scope.

Functional Isolation: System compromise cannot impact propulsion, steering, power, or navigation?	[ ] YES
Network Isolation: System is air-gapped or has no logical IP link to any Category II or III systems?	[ ] YES
External Connectivity: No remote access, maintenance ports, or wireless (WiFi/4G) entry points exist?	[ ] YES
Data Flow: No critical data (NMEA, Modbus, etc.) is exchanged with systems in scope?	[ ] YES
Physical Access: Access to physical media ports (USB/RJ45) is restricted or disabled?	[ ] YES

Detail the specific architecture that prevents cross-contamination…

Technical Lead / CSO:

Signature & Date

Class / Verification Body Acceptance:

Stamp, Signature & Date

Download the full TAG-EXCL-GEN form and the exclusion methodology approved by leading Class Societies.