A NRC perspective on the revised 10 CFR part 21 rule for the procurement of commercial digital computer systems for use in safety system applications in nuclear power facilities

The use of commercially available digital computer systems and components in safety critical systems (nuclear power plant, military, and commercial applications) is increasing rapidly. Commercial dedication (the process of assuring that a commercial grade item will perform its intended safety function) has demonstrated benefits in cost savings and a wide base of user experience, however, care must be taken to avoid difficulties with some aspects of the dedication process such as access to vendor development information, configuration management, long term support, and system integration.