Inspections and audits of boilers and pressure vessels are performed to ensure they operate safely, are properly maintained, and are repaired according to statutory requirements. They verify quality assurance, assembly, manufacturing processes, and that inspectors are certified. Skilled inspectors with extensive knowledge of codes and inspection techniques are essential for high-quality inspections. North American certification is based on ASME codes accepted in over 112 countries for high-temperature hot water boilers over 11 bar and steam boilers over 1 bar.