[en] ITER over all instrumentation and control (IC) is composed of three separate tiers, CODAC conventional control, interlock and safety with two layers, Central IC Systems and Plant Systems. ITER procurement model poses challenges for IC lifetime from architecture design to future maintenance and requires a strong standardization for ITER plant integration. Plant Control Design Handbook (PCDH) provides IC standardization and interface specifications between Plant Systems IC and Central IC Systems. The objective is defining standards, later to be supported, maintained, and enforced, in order to integrate and maintain ITER IC. This paper describes present status of the PCDH. IC standardization process includes market survey and technical survey for appropriate off-the-shelf technical solutions of Hardware and Software with prototype making by different contracts. A major release of PCDH version 4.0 is expected in April 2009, which will be reference document for Procurement Arrangement. New version of this document will be released throughout the lifetime of ITER to take into account standards and specifications extensions and evolutions and to address obsolescence management. This document is composed of an abstract followed by the presentation transparencies. (authors)