sentences:  The broader conflict between the CHAdeMO and SAE Combo connectors, we see that as a hindrance to the market over the next several years that needs to be worked out.In the United States, the standard charging station sign is defined in the Federal Highway Administration's "Manual on Uniform Traffic Control Devices" (MUTCD) 2009 edition.In July 2013, FHWA released interim MUTCD approval for charging station signs located on public roads governed by MUTCD standards.