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Louisiana Class E Knowledge Test Practice
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Safe & Responsible DrivingStandalone practice
For a driver younger than 21, at what blood alcohol concentration does Louisiana’s separate underage provision begin?
Correct answer: 0.02%.
Why
The underage concentration provision begins at 0.02% for a person younger than 21. A concentration of 0.08% or more is handled under the ordinary impaired-operation provision rather than this separate underage charge. Other impairment grounds can also apply; no number is a safe-drinking allowance.
Verified against Louisiana Class D & E Driver’s Guide, DPSMV2052 R08/25 · Under-21 alcohol concentration · p. 128
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