IEC 63096:2020 provides a catalogue of highly recommended and optional security controls graded (see Clause 5 to Clause 20) in line with the security degrees defined by IEC 62645. These are intended for nuclear I&C programmable digital systems and architecture including related activities (I&C platform development, project engineering, operation and maintenance).

This document is intended to be used for designing I&C systems for new NPPs, and modernizing and modifying I&C systems for existing NPPs throughout the I&C programmable digital systems lifecycle. It may also be applicable to other types of nuclear facilities.