Standard CIP-005-5 requires the identification and protection of the Electronic Security Perimeter(s) inside which all Critical Cyber Assets reside, as well as all access points on the perimeter. Standard CIP-005-5 should be read as part of a group of standards numbered Standards CIP-002 through CIP-009.
Within the text of Standard CIP-005-5, “Responsible Entity” shall mean:
- Reliability Coordinator
- Balancing Authority
- Interchange Authority
- Transmission Service Provider
- Transmission Owner
- Transmission Operator
- Generator Owner
- Generator Operator
- Load Serving Entity
- Regional Entity
The following are exempt from Standard CIP-005-5:
- Facilities regulated by the U.S. Nuclear Regulatory Commission or the Canadian Nuclear Safety Commission.
- Cyber Assets associated with communication networks and data communication links between discrete Electronic Security Perimeters.
- Responsible Entities that, in compliance with Standard CIP-002-3, identify that they have no Critical Cyber Assets.
See the NERC website for more details regarding Critical Infrastructure Protection Standards.