On Jan. 5, 2018, the U.S. Department of Labor (DOL) reintroduced 17 opinion letters. The letters were introduced by the Wage and Hour Division during the George W. Bush administration in response to specific employer compliance questions, such as whether “on-call” hours for ambulance personnel are considered as compensable time under the Fair Labor Standards Act (FLSA). The letters were withdrawn in 2009, shortly after their introduction.