This document establishes the legal framework for the notification and marking of sites containing dangerous substances to ensure public safety and emergency responder awareness. The regulations were enacted by the United Kingdom government to standardize the identification of hazardous locations. It provides the specific administrative requirements for site operators to report the presence of dangerous materials to local authorities and fire services.

Legal professionals and safety compliance officers utilize this text as a foundational regulatory instrument for industrial site management. It is recognized as a technical document requiring precise adherence to statutory language for regulatory compliance.