2025 CO DMV Practice Test 19
Based on
2025 CO Driver's Handbook
23. It is illegal for a person under 21 years of age to drive with a blood alcohol concentration (BAC) that is:
A
0.01% --One hundredth of one percent or more.
B
0.05% --Five hundredths of one percent or more.
C
None of the above.
D
0.08% --Eight hundredths of one percent or more.