NSI Technical Bulletin No. 0006 provides guidance on the implementation of BS 5979:2007, the updated British Standard Code of Practice for Alarm Receiving Centres (ARCs) handling signals from fire and security systems. Effective immediately, all organizations seeking or maintaining NSI ARC Gold approval must comply with this standard, which supersedes the 2000 edition. Key changes include mandatory compliance with updated security and operational requirements, with full adherence required by September 30, 2008, and specific provisions for handling alarms, construction standards, and staff training. Manual review recommended for complete details.