Learn more about BAC

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What is BAC?

Alcohol is processed through the body’s liver, and the liver can only break down a certain amount of alcohol per hour. When alcohol is being consumed faster than the liver can break it down, the blood alcohol concentration (BAC) rises, and the feeling of drunkenness occurs. 

Blood Alcohol Concentration is the percent of alcohol in a person’s bloodstream. BAC can be gauged differently from person to person depending on size, weight, assigned sex at birth, and the amount of alcohol consumed. BAC levels have effects on the body’s physical and mental functions.   

Side effects include but are not limited to:

  • Slowed reflexes and reaction time (0.02% – 0.04%) 
  • Slurred speech (0.05% – 0.08%) 
  • Memory trouble, blackouts, and memory loss (0.15%) 
  • Nausea and vomiting (0.15% – 0.20%) 
  • Loss of physical coordination (0.20% – 0.29%) 
  • Passing out (0.30% – 0.39%) 
  • Heartbeat, breathing, and blood pressure changes (0.40% – over) 

BAC Card information


Female BAC Card                                        Male BAC Card

BAC levels for individuals assigned female at birth.     BAC levels for individuals assigned male at birth.

(Click images to enlarge)


BAC Powerpoint  Information