New IEEE Standard - Active - Draft. This guide develops a functional specification for fast charging stations (FCS) for electric vehicles (EV) and electric transportation systems in general. The primary role of the FCS is to aggregate multiple fast chargers and local assets, and to coordinate their operation and energy management. The FCS may incorporate local distributed energy resources (DER), including renewable energy resources, such as solar photovoltaic (PV) generation, and other DER, such as battery energy storage systems and controllable loads. The inclusion of these resources allows the FCS to be configured as a microgrid. The guide develops the basic functional requirements for FCS control system as two sets of core functions, associated with an energy management system and a charge management system. The core functions include discovery and evaluation of charging requirements of EV batteries; monitoring and control of charging profiles; estimation of available and required energy; energy scheduling and management; electric power system interaction and power exchange management. Grid interconnection requirements, and grid and ancillary services provision, are addressed.