Rules on administrative security are laid down in Sections 21 to 23 of Act No 412/2005 on the protection of classified information and on security eligibility, as amended, and elaborated in Decree No 275/2022 on administrative security and on registers of classified information, which entered into force on 1 January 2023 .

The decree is divided into eight parts. Part One contains introductory provisions, definition of basic terms, administrative aids and their management, reference number, marking of the classification level and modification or cancellation of the classification level. Part Two deals with the handling of classified documents, such as the receipt and transport of a consignment, the particulars of classified documents in paper, non-documentary and electronic form, including their registration, and the handling of a European Union classified document at the level TRÉS SECRET UE/EU TOP SECRET. Part Three of the Decree regulates the register of classified information, including the central register and the auxiliary register. Part Four of the Decree deals with ensuring the protection of classified information in the event of personnel changes, the dissolution of a state authority, an organizational unit established by a state authority, a legal entity or a natural person doing business. Part Five regulates the handling of technical equipment and deals with its transmission, recording and destruction.

The Decree is available on the website of the National Security Authority under ‘Legislation – Implementing legislation’ and under ‘Administrative security – Regulations’.