As far as I know some of the H6 & H7 Enduros had ADR compliance. My 250 H7 has a compliance plate but it has been issued by a company in Melbourne as a limited import. I seem to remeber that during the early '80s in NSW bikes such as the Cota 349, 242 trials bikes and H6/H7's could be registered as farm bikes and did not require ADRs but you needed to know a primary producer who would side the application.