Practice question The best motorcycle helmet meets which U.S. standard? U.S. DOT FMVSS 218EPA TIER-4OSHA Class AThere is no U.S. helmet standard Answer: A — U.S. DOT FMVSS 218 The correct answer is shown above. Try the full quiz for additional practice. Practice more: OR Motorcycle Permit Test Practice Questions - Oregon DMV Motorcycle Knowledge Test (Class M Endorsement) Exam →