•
Canadian Reference Materials, certified reference materials produced by the National Research Council Canada •
Certified reference materials, controls or standards used to check the quality and traceability of products •
CIDOC Conceptual Reference Model, an international standard for the exchange of cultural heritage information •
Commentarium pro religiosis (since 1920), after 1934 as
Commentarium pro religiosis et missionariis (ISSN 1124-0172), journal published by the
Claretians ==Science and health==