TSSA's Boilers and Pressure Vessels (BPV) Safety Program regulates all pressure-retaining components manufactured or used in Ontario  to ensure boilers, pressure vessels and piping systems conform to the Technical Standards and Safety Act, 2000 and applicable regulations, codes and standards.  TSSA is involved in all aspects of the life cycle of pressure vessels: from design, to manufacture, to installation, to operation and maintenance. TSSA performs the required installation inspection for all boilers, pressure vessels and piping systems in Ontario. TSSA also conducts periodic inspections on uninsured boilers and pressure vessels in Ontario. All insured boilers and pressure vessels are inspected by insurance companies licensed to underwrite boiler and machinery insurance. TSSA is responsible for the certification of BPV inspectors employed by insurance companies. Boilers and pressure vessels include equipment that produces and distributes hot water, steam, compressed air, and other compressed liquids and gases used in commerce and industry.