ASME refers to American Society of Mechanical Engineers and the society produces the AMSE boiler and pressure code which is used by manufacturers who create pressure boilers and vessels

ASME vessel code is required safety code for creation, design and inspection of any type of pressure vessels, boilers, and nuclear power plant components. Components with ASME vessel codes ensure the safety of everyone who is going to operate the machinery and also provide optimum performance from all equipment. The ASME code was developed by American Society of Mechanical Engineers and the code contains information for material specification and rules for construction for boilers and pressure vessels.