Form Lcb-89 - Participant Manual - Commonwealth Of Pennsylvania Page 20

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MEASURING INTOXICATION
The common measures of intoxication are blood alcohol content (BAC)
and visible intoxication.
BAC is determined by chemical analysis of the blood, breath, or
urine. BAC is the legal standard police and courts use to determine
levels of intoxication.
A 120 lb female + 3 beers
+ 1 hour =
BAC
Visible intoxication is the standard servers must use in determining
intoxication. That is, something that can be observed.
A 160 lb male + 5 beers
EXPLANATION OF BAC
+ 2 hours =
BAC
BAC, or Blood Alcohol Content, is the amount of alcohol in the
1. At what BAC does it
bloodstream.
become illegal for minors
Consuming alcohol raises BAC.
to drive in PA?
Allowing time to pass lowers BAC.
Most alcohol consumed is metabolized by the liver.
2. At what BAC does it
become illegal for CDL
TOLERANCE
holders to drive in PA?
Tolerance is a person’s ability to hide the signs of impairment.
Commercial:
KEY FACTS:
School vehicles:
Tolerance does not mean that the guest is not intoxicated.
Chronic alcohol users can have twice the tolerance
for alcohol as an average person.
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Parent category: Legal