Quillnet
Standards
CRA - Manufacturer
IEC-62443-2-1
IEC-62443-4-1
8.2.2: Documentation of zones and network zone interconnections
Mandatory
Requirement:
The asset owner shall have policies and procedures about documenting and maintaining a baseline of all IACS zones and network zone interconnections and/or conduits, the security risks associated with each, their designation as trusted or untrusted, the SL-T and the SPR for each.
Guidance: