2024 NC DMV Practice Test 15 Based on 2024 NC Driver's Handbook 30. Window tinting is permissible if the allowable light transmittance is no less than this percent: A 20% B 25% C 15% D 35% Grade More 30/30 Progress 0 Errors Restart Grade Grade NC Permit Practice Test 15 Back to Test List NC Permit Practice Test 14 NC Permit Practice Test 16 Challenge Library 12 More NC DMV Practice Tests 1 NC Permit Practice Test 1 2 NC Permit Practice Test 2 3 NC Permit Practice Test 3 4 NC Permit Practice Test 4 16 NC Permit Practice Test 16 17 NC Permit Practice Test 17 18 NC Permit Practice Test 18 19 NC Permit Practice Test 19 20 NC Permit Practice Test 20 21 NC Permit Practice Test 21