According to a leading classification society, the "torque limiting device" requirement for a single diesel engine installation can be waived when a coupling monitoring device is installed. The U.S. Maritime Administration (MarAd) employs Vulkan Monitoring Devices on Ready Reserve Force ships to enable a crew to recognize changes in a ship's propulsion system that are not identified by standard alarm systems. The Ready Reserve Force (RRF) was established in 1976 and provides prompt sealift support for rapid deployment of U.S. military Forces for peacekeeping or humanitarian missions. Early in the Bosnian conflict, the U.S. was called upon to supply sealift capability to move NATO vehicles, ammunition and support equipment to Croatia.