CiA organizes for its members so-called plugfests. In order to avoid misunderstandings, these are no conformance tests. Conformance testing proofs the compliancy to specifications and standards. This is like spellchecking. In a first glance, interoperability does not care on conformity. Nevertheless, conformity increases the probability of interoperability, but it does not guarantee it.
The CANopen SIG (Special Interest Group) scheduled regularly plugfests, one in spring and one in autumn. In the last years, CiA has also scheduled several CAN FD plugfests. The CANopen SIG for special-purpose car add-on devices is also going to organize a plugfest.Further plugfests are in the pipeline. CAN FD is onetime more a topic. But also other devices (e.g. CANopen FD) may be tested on interoperability. For more information please contact Oskar Kaplun (service(at)can-cia.org).