Safety belts should be fastened: 2026 District Of Columbia Permit Test Question Safety belts should be fastened: Answers Whenever you feel unsafe. Before the engine is started. After reaching speeds of 45 mph. Explanation Your safety belt should be fastened before the engine is started. Drivers are required by law to use their seat belts in a moving vehicle. See the exact questions that will be on the 2026 District Of Columbia DMV exam. 99.2% of people who use the cheat sheet pass the FIRST TIME Click HereFull Cheat Sheet Unlock Your Exclusive Cheat Sheet! This questions appears in the following tests: Arkansas Practice Test 2