The System Operator-Transmission Owner Code (STC) defines the relationship between the Transmission System Owners and National Grid as the National Electricity Transmission System Operator (NETSO).
The STC procedures (STCPs) set out the roles, responsibilities, obligations and rights of each party in further detail.
National Grid is the Code Administrator for the STC and maintains the Code. All changes are subject to Industry Consultation and approval by Ofgem.
The STC, STC procedures plus application forms and guidance.
Modifications to the STC, information on the modification process and how to raise a modification.
Meeting dates, papers, panel members and elections.
Standing Groups are used to discuss cross-party or cross-code issues.