Covers updates to the standard in 2004 and 2008. The Official guide to BS 5839 from BSI British Standards. This is the essential guide to BS 5839-1:2002, as amended in December 2004 and April 2008. This code of practice, which as one of the BS 5839 suite of codes and standards bears the generic heading Fire detection and fire alarm systems for buildings, is entitled Code of practice for system design, installation, commissioning and maintenance and as such represents the universal bible for those involved in the design, installation, commissioning, maintenance and use of fire detection and alarm systems in the United Kingdom. Compliance with the code is very commonly required by building control authorities, fire and rescue authorities and others who may enforce provisions for fire safety in certain occupancies; property insurers who may require automatic fire detection systems to comply with the recommendations of the Code and consulting engineers who commonly demand compliance with the code, often as part of the electrical specification for a building.