2024 MD MVA Practice Test 18 Based on 2024 MD Driver's Handbook 24. If under 21 years of age you are considered to be driving while under the influence if your blood alcohol level is: A .02% B .00% C .05% D .07% Next More 24/30 Progress 0 Errors Restart Next Next MD Permit Practice Test 18 Back to Test List MD Permit Practice Test 17 MD Permit Practice Test 19 Challenge Library 12 More MD MVA Practice Tests 1 MD Permit Practice Test 1 2 MD Permit Practice Test 2 3 MD Permit Practice Test 3 4 MD Permit Practice Test 4 5 MD Permit Practice Test 5 6 MD Permit Practice Test 6 7 MD Permit Practice Test 7 8 MD Permit Practice Test 8 19 MD Permit Practice Test 19 20 MD Permit Practice Test 20