In this paper. the authors describe a conformance testing system for SGSF-064-1. the communication protocol between electric vehicles and conductive DC (direct current) chargers in Korea. Since the SGSF-064-1 is based on CAN (controller area network). https://www.roneverhart.com/SWW-x-SXSW-Cake-Something-Was-Wrong-2-8x3/