Section 2(1)(f) in Central Electricity Regulatory Commission (Cross Border Trade of Electricity) Regulations, 2019
(f)'Available Transmission Capability' or 'ATC' means the transfer capability, in MW, of the inter-control area transmission system available for scheduling cross-border transactions (through long-term access, medium-term open access and short-term open access) in a specific direction, taking into account the network security;