OUPV & 100-Ton Master · Drug & Alcohol
Under federal regulation, a crew member is presumed intoxicated and may not operate a vessel at a blood-alcohol concentration of:
- A0.02 percent or higher
- B0.04 percent or higher✓ Correct
- C0.08 percent or higher
- D0.10 percent or higher
Explanation
For commercial vessel operators the limit is 0.04 percent BAC — half the typical highway limit. At or above this level the individual is considered intoxicated and prohibited from operating the vessel.
Authority: 33 CFR 95.020; 46 CFR 4.06
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