Section R309 of the International Residential Code is supplemented as follows:

Electric vehicle charging infrastructure is required. New dwelling units classified as R-3 occupancies shall be required to provide a minimum of one electric vehicle ready parking space for each dwelling unit. This parking space shall be provided with a minimum 208/240-volt dedicated branch circuit for electric vehicle supply equipment that is terminated at a receptacle or junction box within the parking space to allow for future installation of electric vehicle supply equipment. The branch circuit shall be identified as "Electric Vehicle Ready" in the service panel or subpanel directory, and the termination location shall be marked as "Electric Vehicle Ready". Installation shall be in accordance with the National Electrical Code.