Kentucky now requires that electric vehicle charging companies include Tesla's charging plug if they want to secure federal funds from a state program to electrify highways, Reuters reports. The plan went into effect Friday, making Kentucky the first state to officially mandate Tesla's charging technology. Texas and Washington have also shared plans that would require charging companies to include Tesla's "North American Charging Standard" (NACS), as well as the Combined Charging System (CCS), if they want to qualify for federal dollars.