You can find "FM APPROVED" mark on our fire door operators.

Factory Mutual (FM) Approvals is a third-party testing and certification services that was founded by FM Global, an American mutual insurance company. FM tests property loss prevention products and services used in commercial and industrial facilities, to verify they meet rigorous loss prevention standards of quality, technical integrity and performance. For more information, go to www.fmapprovals.com.

When you need a door operator to be used in the fire door assembly, U.S. Gear Fire Door Operators are your best choices.