FM approval is required for the components, specifically for exhaust air systems, used in microchip facilities worldwide. As of 2001 LBF holds FM approval and is listed as a licensed supplier. The basis of which is a rigorous fire test at the American FM institute – wherein pipes and ducts are tested and certified for fire resistance and smoke emissions. In order to maintain FM approved status FM audits take place twice a year during production to confirm compliancy to manufacturing standards.