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On Approval of Amendments to the Requirements for Conducting Modifications of Nuclear Facilities and the Procedure for Assessing Their Safety

This order amends the requirements for modifications of nuclear facilities and their safety assessment. The main purpose is to improve the procedures for modifying nuclear facilities and introduce new requirements for cybersecurity of information systems.

Structurally, the document introduces changes to the preamble and 4 sections of the base document, clarifying terminology and procedures. Key changes relate to the definition of “equivalent element”, modification procedures, and documentation requirements.

Key important provisions:
– Expanded definition of “equivalent element” and conditions of its application
– Added new cybersecurity requirements for modification of information and control systems
– Detailed list of documents necessary for modifications
– Introduced a new section on technical solution for substantiating the use of equivalent elements
– Clarified requirements for testing and pilot operation of modified systems

The document concerns critical infrastructure – nuclear facilities, and establishes strict requirements for their modification and safety.

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