This Recommendation | International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for the OSI Commitment, Concurrency and Recovery (CCR) protocol specified in ITU-T Rec. X.852 | ISO/IEC 9805‑1. The PICS proforma represents, in tabular form, the mandatory and optional elements of the CCR protocol. The PICS proforma is used to indicate the features and choices of a particular implementation of the CCR protocol.