This CEN/ISO Technical Specification describes tests that verify OBU conformance of implementations of functions and data structures, as defined in the implementation conformance statement based on ISO 14906, for EFC applications. After the tests of isolated data items and functions (C.1-C.2), an example is given for testing of a complete EFC transaction (C.3). The scope of this CEN/ISO Technical Specification comprises definitions of OBU conformance assessment tests of: ? Basic DSRC L7 functionality; ? EFC application functions; ? EFC attributes (i.e. EFC application information); ? the addressing procedures of EFC attributes and (hardware) components (e.g. ICC and MMI); ? the EFC transaction model, which defines the common elements and steps of any EFC transaction; and ? the behaviour of the interface so as to support interoperability on an EFC-DSRC application interface level.