That would be the 'sobriety test', Cap'n!
By operating a boat in Georgia, you have consented to a sobriety test if directed.
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Sobriety Test
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A Field Sobriety test will determine Blood Alcohol Content (BAC).
Sobrity
See
seeing the Red & Green lights without knowing what they are telling you means you should not be the operator of a boat of any kind until you learn that they are Navigation lights and even if you are not operating a power boat, you still need to understand what they mean. I suggest you do a boat lic. course before you cause an accident.