This document establishes the specific legal prescriptions and definitions required to enact the Official Secrets Act 1989 within the United Kingdom. The text serves as a formal statutory instrument, providing the necessary regulatory framework to clarify which government bodies and roles fall under the scope of the primary legislation. It functions as a technical supplement to ensure the enforceability of national security protocols.

This document is utilized primarily by legal professionals and government administrators requiring precise regulatory definitions. Experts categorize this as a foundational reference text for understanding the administrative implementation of UK national security law.