Integrated Services Digital Network (ISDN) - Primary rate User-Network Interface (UNI) - Part 3: Implementation Conformance Statement (ICS) and Implementation eXtra Information for Testing (IXIT) proforma specification for interface IA and IB; English version ETS 300011-3:1998
Edition 1998-12

Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Transaction Capabilities (TC) version 2 - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification; English version ETS 300287-2:1996
Edition 1997-11

Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Message Transfer Part (MTP) to support international interconnection - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification; English version ETS 300008-2:1997
Edition 1998-07

Digital Enhanced Cordless Telecommunications (DECT) - DECT Authentication Module (DAM) - Implementation Conformance Statement (ICS) proforma specification; English version ETS 300760:1997
Edition 1998-07

Intelligent Network (IN) - Intelligent Network Capability Set 1 (CS1), Core Intelligent Network Application Protocol (INAP) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification for Service Switching Function (SSF), Specialized Resource Function (SRF) and Service Control Function (SCF); English version ETS 300374-2:1996
Edition 1996-10

Intelligent transport systems - Cooperative ITS - Test requirements and Protocol Implementation Conformance Statement (PICS) pro forma for CEN ISO/TS 17426 (ISO/TS 21189:2019); English version CEN ISO/TS 21189:2019
Edition 2019-10