Codes and Standards: IEEE National Consensus Standard
The Nuclear Regulatory Commission is amending its regulations to incorporate by reference IEEE Std. 603-1991, a national consensus standard for power, instrumentation, and control portions of safety systems in nuclear power plants. Use of IEEE Std. 603-1991 is mandatory for new nuclear power plants and design approvals or certifications and is voluntary for existing nuclear power plants and design approvals. This action is necessary to endorse the latest version of this national consensus standard in NRC's regulations because IEEE has withdrawn IEEE Std. 279-1971.