NSI Special Bulletin No. 04/05 provides guidance on the implementation of BS 7960:2005, the British Standard Code of Practice for Door Supervisors, which supersedes the 1999 version. Effective immediately, all NSI-approved organizations must comply with the new standard to maintain their approval, with existing companies given until July 31, 2006, to fully comply. The bulletin outlines key changes, including mandatory compliance with the standard’s recommendations, updated definitions, and requirements for risk assessments, training, and record-keeping for door supervisors. Manual review is recommended for complete details and specific changes.