What is the Follow-up Service (FUS) Agreement with UL?
The FUS Agreement is a contract which explains the terms under which the UL Mark may be used. It also explains manufacturers’ obligations to continuously monitor their production so their products continue to meet UL’s requirements. The Follow-up Service Agreement also describes the terms under which Follow-up Service inspections are conducted. For example, the manufacturer agrees to allow UL personnel immediate, unannounced and unrestricted access to any part of the facility in which Listed products and components may be fabricated, assembled or stored.