The document “NCP-110.3-Code-of-Practice-Technical-Surveillance-Counter-Measures-Apr-2019” outlines a comprehensive code of practice for companies providing technical surveillance counter-measures services in the UK. It details requirements for organizational structure, personnel screening, training, service provision, and documentation, emphasizing compliance with NSI regulations and standards. The code aims to ensure effective management and operational integrity within the industry, promoting best practices and accountability among service providers.