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Persons not
required to wear a
safety belt include
anyone:
• With a written statement
from a physician that it is not
advisable for the person to
wear a safety belt for physical
or medical reasons;
• In any passenger vehicle not
required to be equipped with
safety belts under federal law;
• Who is a U.S. postal service
worker performing duties as
a postal carrier;
• Properly secured in a child
safety restraint system;
• Occupying a front seat in a
vehicle in which all operable
safety restraints are being
used by the driver or passen-
gers.
Yes
No
No
No
No
Proper use,
misuse of
seat belts
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The Driver License Compact
Wyoming is a member of the Driver License Compact.
The compact provides guidelines for greater cooperation
among states in driver license issues, and provides a one
license, one record concept. All states except Georgia,
Massachusetts, Michigan, Tennessee and Wisconsin are
currently members.
How alcohol and drugs affect
you and your ability to drive
Alcohol the major cause of crashes
Driving while under the influence of alcohol is the
major cause of ALMOST HALF of the crashes in which
someone is killed. Nationwide, nearly 25,000 persons die
each year because of drivers who have been drinking.
Alcohol is a drug that slows the activity of the brain
and spinal cord. When alcohol enters the stomach, it
goes directly into the blood and to all parts of the body,
including the brain. Its effect is to put the brain to sleep
when taken in sufficient amounts.
Alcohol directly affects a person’s ability to drive. If
a person drinks increasing amounts of alcohol, the
amount of alcohol in the blood will rise accordingly,
and the degree of impairment and the intensity of the
effect will rise rapidly.
The amount or concentration of alcohol in the blood is
known as Blood Alcohol Concentration or BAC. Three
factors influence a person’s BAC:
• The amount of alcohol consumed;
• The period of time over which the alcohol was con-
sumed; and
• The person’s body weight.
Effects of the amount of alcohol
Pure ethyl alcohol is a colorless liquid that looks like
water but has a burning taste. It mixes readily with
other liquids. Its strength is reduced by the amount of
water or mix used. Beer usually contains about 5 percent
alcohol, wines 12 or 20 percent, and hard liquors, such
as whiskey, gin, vodka, rum, brandy, etc., about 40 to
50 percent. Therefore, 12 ounces of beer, three to five
ounces of wine, and one and one-half ounces of 86 proof
hard liquor each have about one-half ounce of alcohol.
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Effects of time
When alcohol reaches the stomach, it is absorbed di-
rectly into the blood stream. As more and more alcohol
is absorbed, the percentage of alcohol in the blood gets
higher and higher.
A person may feel the effects of alcohol shortly after
starting to drink. The effects will increase with the
passage of time since it takes 30 to 40 minutes to totally
absorb the alcohol contained in a single drink.
While food or milk in the stomach does slow absorption,
two hours later it won’t matter if you had been drinking
on a full stomach or not. If two persons of equal weight
drink the same amount they will have about the same
BAC at the end of that two-hour period. TIME IS THE
ONLY SIGNIFICANT FACTOR IN REDUCING BAC
LEVELS.
Approximately 90 percent of the alcohol in your body is
eliminated by the liver. It is eliminated at a constant rate
and this rate is about the same for all persons, about one
drink per hour. It CANNOT be eliminated any faster.
SHOWERING, DRINKING COFFEE OR EXERCISING
IN AN EFFORT TO SOBER UP ARE USELESS. Only
TIME can do the job.
Effects of body weight
Heavier people do have more blood and body fluids
which dilute a given amount of alcohol more than a light
person’s blood and fluids. Therefore if a heavy person
and a light person drink the same amount of alcohol,
the heavy person will likely have a lower BAC.
Drunkenness is not always apparent
A BAC of 0.02 percent is considered low and most
persons are not significantly affected by alcohol at this
level. On the other hand, a BAC of 0.08 percent is con-
sidered to be high, and people at this level are impaired
mentally and physically whether or not they show it.
Many people think that drunkenness is determined by
outward signs. They have in mind individuals who stag-
ger, slobber or put lamp shades on their heads. However
there are individuals who regularly drink to relatively
high BACs that do not show any of the outward signs.
Even though they are able to compensate and cover up
their drunkenness, they still increase their chances of
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being in a crash, if they drive with a BAC of 0.02 per-
cent or higher. As a person’s BAC rises, their ability to
judge and make accurate decisions in traffic become
more and more impaired, regardless of whether they
appear to be impaired.
Effects on decision-making
Alcohol seriously impairs the ability to drive safely because
the ability to IDENTIFY, PREDICT, DECIDE and EX-
ECUTE is seriously reduced.
• IDENTIFY: Senses such as vision, hearing, and body
position are reduced, and therefore a person’s ability
to detect hazards in a pat-
tern of traffic is seriously
affected. Impaired driv-
ers tend to fix their vision
on a particular object
and not see others. The
ability to detect persons
and vehicles to the side
is almost completely lost.
Hearing is reduced, as is
the ability to judge distances. Drivers with a high
BAC may also lose their sense of body position, and
with increasing impairment, they may fade across
the center line, wander from lane to lane and even
run off the road.
• PREDICT: Effective drivers predict what other driv-
ers might do to cause them problems, and driving
under the influence of alcohol, with the ability to see,
hear, and feel body position impaired, makes such
predictions difficult, if not impossible.
• DECIDE: The ability to make good decisions in
critical situations is also vitally important to safe
driving, and that ability is seriously affected when
it is based on faulty senses, faulty judgments and
poor predictions. Couple this with the false sense of
confidence and lack of good judgment that alcohol
provides, and you can see how very likely it is that the
impaired driver will make bad decisions in critical
driving situations.
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• EXECUTE: In demonstrations using driving simula-
tors, test subjects often turn left when they think they
are turning right. They jam on the accelerator when
they think they are applying the brakes. This happens
even though the people being tested may be sober
by outward appearances and legal definition. Even
if they execute correctly, they do so much slower.
Because of this reduced ability to execute, a drinking
driver, traveling at 55 mph, will drive an additional
32 feet or more before he can apply the brakes. Even
at lower speeds, this added two-fifths of a second can
be the difference between crashing and not crashing.
Other factors
There are several other factors that influence a driver’s
ability to operate a vehicle safely when drinking. These
factors help explain why people behave differently when
affected by alcohol, and why some drivers show greater
impairment than others with the same BAC.
• DRIVING EXPERIENCE: Alcohol affects the inex-
perienced driver more than the experienced driver.
The poor or inexperienced driver will become a
much worse driver quicker when drinking, and even
small amounts of alcohol are likely to increase the
number of errors dramatically.
• DRINKING EXPERIENCE: The same can be said
of less experienced drinkers. Beginning drinkers
will often show greater impairment and be less able
to drive after drinking than a person who is a more
experienced drinker.
• DRIVING CONDITIONS: Unusual weather, lighting
and road conditions make driving more difficult and
call for a higher level of performance, while drinking
only reduces a person's ability to perform. The drink-
ing driver will not be able to lift his performance
level.
• MENTAL STATE: A person who is tired, angry, anx-
ious, emotionally upset, or even elated, may already
be impaired as a driver. The good driver will com-
pensate for these conditions, but alcohol reduces the
ability to do so. In fact, anger and alcohol have been
found to be one of the most dangerous combinations.
Simply put, alcohol makes it much more difficult for
people to control themselves.
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Drinking and driving — Is it worth it?
If you are placed under arrest for driving under the
influence, a chemical test or tests to determine your
BAC may result. Under the Implied Consent law, driv-
ers are deemed to have given their consent to such tests
whenever driving on a public street or highway.
• If you REFUSE to take the required test or tests, law
enforcement may obtain a warrant to require the test
or tests to be administered by an approved tester.
• If you submit to the required test or tests and your
BAC is 0.08 percent or more, your driver license and
driving privileges will be suspended for 90 days and
you may be subject to criminal penalties.
• And while a BAC of 0.08 percent or more may result
in a conviction, you may also be convicted of DWUI
with a BAC of 0.05 percent and other supporting
evidence.
It’s your decision
We would suggest you seriously consider planning
ahead so that you do not have to drive after you have
been drinking.
Other drugs
Most of the common drugs (diet, sleeping, allergy,
tranquilizers) affect at least one of the major skills you
need as a driver. Drivers need to know how drugs affect
their ability to Identify, Predict, Decide and Execute.
• Diet and "stay-awake" pills, known as “pep pills,”
“uppers” and “speed,” give drivers a false feeling of
alertness and often increase self-confidence, which
may lead to excessive risk-taking. Some drivers try
to drive longer by taking “stay-awake” pills. However
these drugs keep drivers from realizing how tired
they are and that they therefore do not have the
ability to identify critical objects and make quick
decisions. Attempts to stay awake with drugs can
cause additional problems.
• Sleeping pills are intended to relax and help persons
sleep. They can make thinking difficult, affect emo-
tions and cause sleepiness. They can affect all of the
driving IPDE skills for several hours.
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• Allergy pills and cold remedies: These pills can con-
tain a variety of antihistamines, bromides, codeine
and alcohol. They can cause a person to become
sleepy and impair a person’s ability to think clearly.
• Tranquilizers: These pills are intended to help a
person calm down. The drugs cause a person to
become less alert and sleepy. They also make think-
ing difficult and affect emotions. The pills can affect
alertness, attention, judgment and reactions. The
effects may last for several hours.
• Mind-altering drugs: Marijuana, LSD, heroin and
similar drugs are illegal. They are often impure and
may vary in strength. These drugs often affect a
person’s mood, vision, reaction and ability to judge
time and space. They tend to make users indifferent
to or even unaware of their surroundings. The total
effects are often unpredictable. Anyone under the
influence of these drugs must not attempt to drive a
motor vehicle.
Be cautious of new medicines. Do not drive until you
are certain that they will not impair your driving. You
should know that Driving While Under the Influence
of any controlled drug is not legal. You may be charged
and convicted of DWUI.
Ask your doctor about what effects any drugs he pre-
scribes might have on your driving.
Read the label carefully before you buy or use any over-
the-counter or non-prescription drug.
What to do when you are
stopped by law enforcement
There are many different reasons why a police officer
might stop you. Whatever the reason, the officer needs
your cooperation.
• The police may want to warn you about a potentially
dangerous situation.
• You may have committed a traffic violation.
• Your vehicle may match the description of one used
in a criminal act.
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• The officer might think you are in trouble and need
help.
• You may have witnessed a crime.
If you are stopped by the police while driving, you may
feel confused, anxious, or even angry. These are natural
feelings, but remember, traffic stops can also be stressful
and dangerous for the police officer. Each year, many
law enforcement officers are killed or seriously injured
while making the “routine” traffic stop. When you see
the blue and red overhead lights and/or hear the siren,
remain calm, slow down, and pull over to the right of
the roadway in a safe location. Do not stop in the lane
of travel, on bridges, or against guardrails.
• Put your vehicle in park.
• To facilitate communication with the officer, roll
down your window, end phone calls, and turn down
your radio.
• Do not exit your vehicle unless asked to do so. This
is for safety reasons. Drivers and passengers may be
ordered to stay in the vehicle, or told to exit. Wait for
direction from the officer.
• Keep your hands on the steering wheel so the officer
can see them.
Understand that each situation is unique, and the
police officer must alter his or her response to fit the
circumstance. Generally, however, a police officer:
1. Will provide his/her name upon request.
2. Will inform a person of the reason for being
stopped.
• Inform the officer of any weapons in your vehicle and
their location. Do not reach or point to the location.
• Avoid any sudden movements, especially toward the
floorboard, rear seat, or passenger side of the vehicle.
• Turn on your interior lighting if stopped at night.
• Comply with the officer’s request to see your driver’s
license, proof of insurance, and vehicle registration.
Wyoming law requires you to carry these with you.
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• If your documents are out of reach, tell the officer
where they are before you reach for them.
• If there are passengers in your vehicle, encourage
them to remain quiet, and cooperate with instruc-
tions. You, as the operator, are solely responsible for
your vehicle and its occupants.
• Answer all questions truthfully.
• The officer may issue you a ticket. If you feel the
reason is vague or unclear, politely ask the officer
for details.
• Avoid becoming argumentative. Arguing will not
change the officer’s mind. If you contest the violation,
you will have an opportunity to address the matter
in court.
• You have the right to politely deny a request by a
police officer to search your car; however, if probable
cause is present, the officer has the right to search
your vehicle without your consent.
• If you come across an emergency or maintenance
vehicle with its lights activated on the side of the
road, remember Wyoming law requires you to merge
into the lane farthest from that working vehicle (in-
terstate) or to reduce your speed by at least 20 mph
(two lane road).
• If you are being overtaken by an emergency vehicle
with its lights activated, Wyoming law requires you
to pull off to the right side of the road and stop until
the emergency vehicle has passed.
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rules of the road
Speed
Legal speed limits (All unless otherwise posted)
Interstate Highways ............................. 80 mph, 75 mph
Secondary Highways ...........................................70 mph
Residential Areas .................................................30 mph
Business Areas .....................................................30 mph
School Zones ........................................................20 mph
Adjust speed for road conditions
The only contact your car has with the road is through
its tires, and each only has an area of rubber about the
size of a person's hand on the surface of the road. The
grip provided by the tires, then, is very dependent on the
condition of the road itself. It is imperative, therefore,
that motorists drive according to road conditions.
On curves
Adjust speed BEFORE entering a curve. Going too fast can
break the grip that tires have on the road.
At intersections
Trees, bushes or buildings at intersections can block
the view of vehicles coming from the side. Therefore
approach a “blind” intersection at no more than 15 mph.
On slippery roads
Slippery roads reduce your the tires' grip, so drive slower
than you would on a dry road. When driving on:
Wet road Reduce speed by at least 5-10 mph.
Packed snow Reduce speed by at least half.
Ice Reduce speed to a crawl. You may have
to slow even more if vehicles are ahead.
Adjust speed for traffic conditions
Crashes tend to happen when one driver is going faster
or slower than other vehicles on the road:
• If you are going faster than traffic, you will have to
pass other vehicles. The chances of a crash increase
if you pass many vehicles.
• Going slower than traffic or stopping suddenly is as
dangerous as speeding. The risk of rear-end collisions