That depends on the local ordinances the city that the bar operates in establish. Generally, bars which serve alcohol do not have private security and rely on the police.
 Maintain Bar area, stock and equipment including stock requirements / orders  General bar duties where required The barman is responsible for restocking alcohol, beer and fruit.
Yes the bar exam is required.
I am head of security for a bar in north carolina. It is gonna be a hard sell at under 21 because you are more likely to have underage friends however, 18 + will keep the bar out of trouble if the Alcohol Law Enforcement checks
Can bars sell alchol today?
The main purpose of a door security bar is a master lock that is meant to provide security against trespassing and is sold at Lowe's, Home Depot, and Amazon.
alcohol
You must be 21 to enter a bar in Kentucky.
You can take mini bottles of alcohol (3 oz. or less) through airport security. The alcohol must be less than 140 proof.
percentage
Typically a security guard is required to know first aid and CPR. The security guard is required to respond to all emergencies. The protocols between the local EMS and security will be set up so the security guard will know the bounds and what steps to follow based on the situation. Usually, the security guard will be required to perform first aid and CPR until medical help arrives.
to work as waiter where you can only serve alcohol , you have to be 18 to work behind the bar where you going to to make drinks you have to be 21
Can be many different things depending on context- Bar like a toolbar, bar in a game, bar in a graph, bar as in alcohol, barometric, etc etc. rephrase with type.