OPENREACH DIGITAL SERVICES TEST LAB – INVITATION TO TEST EQUIPMENT COMPATIBILITY IN THE NEW ALL-IP ENVIRONMENT
This circular letter invites NSI approved companies to participate in testing equipment compatibility with the All-IP network infrastructure at the Openreach Digital Services Test Lab. It emphasizes the voluntary nature of participation and offers support for a smooth transition from PSTN to All-IP systems.
Read MoreAMENDMENT 1 TO EN 50136-2:2013
This circular letter introduces NSI Technical Bulletin No. 0064, detailing changes to EN 50136-2:2013, effective September 2023. Recipients are encouraged to reach out with any questions regarding these changes.
Read MoreUPDATE ON THE MIGRATION OF PSTN TELEPHONE LINES TO THE DIGITAL ‘ALL IP’ NETWORK
This circular letter informs approved companies about the reset date for the PSTN switch-off, now scheduled for 31st January 2027. It outlines the implications for communication providers and emphasizes the need for proactive migration to alternative solutions to avoid negative consequences.
Read MoreCONFIRMATION OF “VALIDATOR” STATUS
This circular letter informs NSI Life Safety Fire Risk Assessment approved companies about changes in the process of confirming a fire risk assessor’s status as a ‘validator’ under the BAFE SP205 scheme. The new confirmation letters will no longer include the ‘Tier’ of the assessed premises and will require a completed fire risk assessment for certain applications.
Read MoreCORRIGENDUM TO EN 50136-2:2013+A1:2023
This circular letter highlights a Corrigendum to EN 50136-2:2013+A1:2023, which changes the implementation date of Amendment 1 to 13th February 2026. It also notes that NSI Technical Bulletin No. 0064 did not initially account for this change.
Read MoreMANDATORY REQUIREMENTS FOR URN HANDLING
This circular letter outlines mandatory requirements for URN handling to improve ECHO call handling efficiency and accuracy. NSI approved companies are required to comply with the specifications detailed in Technical Bulletin TB 0069 to ensure operational integrity.
Read MorePUBLICATION OF BS EN 1838:2024 – LIGHTING APPLICATIONS — EMERGENCY LIGHTING FOR BUILDINGS
The circular letter announces the publication of BS EN 1838:2024, which supersedes the previous standard BS EN 1838:2013. It outlines significant changes to emergency lighting requirements and provides a timeline for compliance for NSI approved companies.
Read MoreBSI REQUEST FOR PUBLIC COMMENT ON DRAFT FIRE DETECTION & FIRE ALARM STANDARD BS 5839-1
BSI is inviting comments on the draft of BS 5839-1, with the public comment period ending on April 16, 2024. Key proposed changes include restructuring of the document and new recommendations on fire detection and alarm systems.
Read MorePUBLICATION OF BS 5839-1:2025
This circular letter announces the publication of BS 5839-1:2025, which supersedes the previous version BS 5839-1:2017. It outlines significant technical changes and provides a timeline for approved companies to transition to the new standard by 31st October 2025.
Read MoreRelease of the ‘National Police Chiefs’ Council (NPCC) Police Operational Advice and Security Industry Requirements for Response to Security Systems’ 2025
The NPCC has released updated requirements for response to security systems in 2025, which apply to all installers and ARCs in England, Wales, and Northern Ireland. Key updates include increased documentation robustness, clearer compliance expectations, and revisions to appendices reflecting best practices in the security industry.
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