NSI Technical Bulletin No. 0010 provides guidance on the implementation of BS 7984:2008, the British Standard for Keyholding and Response Services, which supersedes the 2001 edition. The bulletin outlines mandatory compliance requirements for NSI Approved Companies, including a transition period for existing companies to meet the new standards by June 30, 2010. Key updates include enhanced definitions, training requirements for keyholding response officers, and specific guidelines for key storage at customer premises, emphasizing the importance of security and compliance with insurance standards. Manual review is recommended for complete details, as some sections may require further clarification.