4 Restoring a national nuclear research asset INL achieved a significant milestone by completing all readiness activities to restart the Transient Reactor Test (TREAT) facility. TREAT’s testing capability gives researchers the ability to test nuclear fuel systems within sealed capsules and prototypical test loops under a wide range of dynamic conditions, including extreme accident scenarios that can melt fuel. Transient testing is a vital component of determining the safety envelope of new nuclear fuel systems. INL’s Resumption of Transient Testing Program completed its work 12 months ahead of its baseline schedule and nearly $20 million under the baseline budget of $75 million. The accelerated restart activities place the U.S. at the forefront of nuclear fuel safety research by restoring a national capability for understanding the response of nuclear fuel materials and designs to the conditions experienced during unexpected events. Leadership NATIONAL INL is a multiprogram national lab that supports deployment of new energy solutions and critical infrastructure protection. The lab’s unique capabilities position us to lead several national research, demonstration and assessment efforts that help protect the nation’s resources and security. On Nov. 15, 2017, DOE announced the resumption of operations at INL’sTransient ReactorTest (TREAT) Facility.