This Technical Bulletin (No. 0056 Rev.1) from the National Security Inspectorate outlines the publication of BS 5839-6:2019+A1:2020, which serves as a code of practice for fire detection and alarm systems in domestic settings. The bulletin specifies that new applicants for NSI Fire Gold and Silver schemes will be audited against this updated standard immediately, and highlights significant changes, including new user instructions regarding the risks of children not waking to fire alarms and the importance of having a fire escape plan. Additional details on amendments and clarifications within the standard are also provided. Manual review recommended for complete details.