No person may attempt to act as a crewmember of a civil aircraft with
A
.008 percent by weight or more alcohol in the blood.
B
.004 percent by weight or more alcohol in the blood.
C
.04 percent by weight or more alcohol in the blood.✓ Correct Answer
Explanation
14 CFR 91.17(a)(4) prohibits acting or attempting to act as a crewmember with an alcohol concentration of 0.04 or greater in a blood or breath specimen. The 0.008 and 0.004 values are decimal-point distortions of that limit.
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