We present the first version of a comprehensive conformance test suite for reasoners implementing the OWL 2 RL/RDF rules language and compliant super languages, up to the scale of the OWL 2 RDFbased semantics. The OWL 2 RL/RDF rules language is one of the new specifications of the W3C OWL Working Group, and it is a promising candidate to foster a larger spread of practical reasoning on the Semantic Web. Several groups have now announced to develop reasoners for the language. The test suite consists of more than 700 test cases that have been carefully constructed to check reasoners for valid conclusions. It is meant to indirectly contribute to a wide adoption of the language by supporting reasoner creators to better assure the quality of their product.