With the growing adoption of electric vehicles (EVs), there is an increased need for a reliable EV charging infrastructure. To help meet this need, the ChargeX report “Recommendations for Minimum Required Error Codes for Electric Vehicle Charging Infrastructure” 2 recommends a set of minimum required error codes (MRECs) and their functional and responsibility classifications. EV supply equipment (EVSE) manufacturers, charging station operators (CSOs), EV manufacturers, and other stakeholders in the North American market are encouraged to uniformly adopt the MRECs to enhance EV charging error reporting, interpretation, and diagnostics. This document serves as a guide to enable uniform implementation of the MRECs using the open charge point protocol (OCPP).

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