What’s the Regulation Say?
4–3. Occasions for wear
c. Restrictions on wear.
(1) Personnel may not wear the combat uniform in off-post establishments that primarily sell alcohol for consumption on the premises. If the off-post establishment sells alcohol and food for consumption on the premises, Soldiers
may not wear the combat uniform if their activities in the establishment center on the drinking of alcohol.
If you are in a place that does not primarily serve alcohol (Like a Bar) and the place you are in is an establishment that serves food and/or a location like a bowling alley, then I would say Yes, you can drink while in uniform as long as you are not there for the sole purpose of drinking and your conduct does not reflect poorly on the service.
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