The Central Electricity Regulatory Commission (CERC) has decided to expand the scope of operation of the CERC (Ancillary Services Operations) Regulations, 2015 to facilitate availability of adequate reserves with the system operator. Accordingly, the eligibility for participation for reserve regulation ancillary services (RRAS) referred to in Regulation 5 of the RRAS Regulations, 2015, and the merit order stack to be prepared by the nodal agency will, in addition to the regional entity generating stations whose tariffs are determined or adopted by the commission, also include the state generating stations whose tariffs are determined or adopted by the state commission and willing to participate under RRAS; and the generating stations which are mandated by the central government to participate under RRAS and whose tariffs are discovered through a competitive bidding process.