Key features: The is a vital source of information for: All engineering pressure systems and other types of mechanical equipment must be installed, operated, and maintained properly. It must be safe and comply with standards, regulations, and guidelines.  In-service inspection is more formally controlled by statutory requirements than other types of inspection. The puts a good deal of emphasis on the ‘compliance’ aspects and the ‘duty of care’ requirements placed on plant owners, operators, and inspectors. The book is suitable for those who operate pressure systems, lifting equipment, and similar mechanical plant are subject to rigorous inspection from external bodies as a matter of course. All operators have a duty to conduct in-service checks and internal inspection procedures to ensure the safe, reliable, and economic running of their equipment.