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NERC CIP Version 4 Changes to Systems and Facilities Critical to System Restoration

The following are changes to NERC CIP Version 4 as it applies to systems and facilities critical to system restoration:

1.4. Each Black start Resource identified in the Transmission Operator’s restoration plan.

This means that if a transmission operator defines a black start resource in their restoration plan as critical than all of those resources will be considered Critical Assets.

1.5. The Facilities comprising the Cranking Paths and meeting the initial switching requirements from the Black start Resource to the first interconnection point of the generation unit(s) to be started, or up to the point on the Cranking Path where two or more path options exist, as identified in the Transmission Operator’s restoration plan.

This means that all facilities compromising the cranking paths that are required to meet initial switching requirements from the Black start Resource to the first interconnection point of the generation unit(s) to be started will be considered Critical Assets. Additional paths identified in the transmission operator’s restoration plan would be considered Critical Assets themselves.