South Dakota permit test numbers to know

Distances, speeds, limits, fines and deadlines are the questions people miss most, because they have to be memorized. Here are 52 South Dakota numbers, grouped and cited, with a free quiz and flashcards to lock them in.

Numbers quiz

12 questions a round from the 38 number questions in our South Dakota bank. Questions you miss come back more often in later rounds.

Free and unlimited. Your answers count toward your readiness and mistake review.

Numbers flashcards

38 cards: the question on the front, the number and its source on the back. Swipe right if you knew it.

Each deck starts with 20 free cards. Swipe right if you knew it, left to see it again.

See 3 of the cards
  • Alcohol & drugs

    For a South Dakota driver 21 or older, what blood alcohol concentration (BAC) is evidence of driving under the influence?

    0.08% or more

    A BAC of 0.08% or more is evidence that an adult was driving under the influence.

    South Dakota Driver License Manual, page 20

  • Fines, points & penalties

    How many points in any 12 consecutive months can lead to a South Dakota license suspension?

    15 points

    A driver who collects 15 points in any 12 consecutive months, or 22 points in any 24 consecutive months, is subject to suspension.

    South Dakota Driver License Manual, page 14

  • Speed limits

    On a two-lane highway, you approach a stopped vehicle using amber warning lights. How much must you slow down?

    To at least 20 mph below the posted limit

    On two-lane highways, at least 300 feet before the stopped vehicle, you must slow to at least twenty miles per hour below the posted limit (or to 5 mph where the limit is 20 mph or less) and proceed with caution.

    South Dakota Driver License Manual, page 2

Every South Dakota number, by topic

Official test facts and South Dakota laws come first in each group, then the numbers from our handbook questions. Tap a source to read the exact words it comes from.

Alcohol & drugs

8 numbers
NumberWhat it’s aboutSource
0.08%Legal BAC limit for adult driverssdlegislature.gov
Quote
There is 0.08 percent or more by weight of alcohol in that person's blood as shown by chemical analysis of that person's breath, blood, or other bodily substance;
0.02%BAC limit for drivers under 21sdlegislature.gov
Quote
It is a Class 2 misdemeanor for any person under the age of twenty-one to drive, operate, or be in actual physical control of any vehicle: (1) If there is physical evidence of 0.02 percent or more by weight of alcohol in the person's blood
0.04%BAC limit in a commercial vehiclesdlegislature.gov
Quote
No person may drive or be in actual physical control of a commercial motor vehicle while there is between 0.04 and 0.08 percent or more, by weight of alcohol in that person's blood
1 year, $2,000Drunk driving (DUI)Class 1 misdemeanor (up to 1 year in jail and/or a $2,000 fine)sdlegislature.gov
Quote
Class 1 misdemeanor: one year imprisonment in a county jail or two thousand dollars fine, or both;
0.08%For a South Dakota driver 21 or older, what blood alcohol concentration (BAC) is evidence of driving under the influence?Answer: 0.08% or moreSouth Dakota Driver License Manual, page 20
Quote
A Blood Alcohol Concentration of 0.08% (0.02% if under 21 years of age) or more is evidence that you were driving under the influence of alcohol.
0.02%If you are under 21, at what BAC can you be arrested under South Dakota's zero tolerance law?Answer: 0.02%South Dakota Driver License Manual, page 20
Quote
In South Dakota, if you are under 21, you can also be arrested for alcohol impairment at 0.02%.
30-dayA 19-year-old driver is convicted for the first time under South Dakota's zero tolerance law (0.02% BAC or more). What is the penalty?Answer: A fine and a 30-day loss of driver licenseSouth Dakota Driver License Manual, page 20
Quote
First offense is a Class 2 misdemeanor which is punishable by a fine and a 30-day loss of driver license.
3 yearsAfter a DWI conviction in South Dakota, how long must you maintain an SR22 insurance filing?Answer: 3 years from the eligibility dateSouth Dakota Driver License Manual, page 20
Quote
MAINTAIN THIS INSURANCE FOR 3 YEARS FROM THE ELIGIBILITY DATE.

Fines, points & penalties

5 numbers
NumberWhat it’s aboutSource
300 ftMove Over lawAny vehicle stopped or on the shoulder using amber, yellow or blue lights: on an interstate or highway with 2+ lanes your way, merge into the lane farthest from it at least 300 ft beforesdlegislature.gov
Quote
If driving on an interstate highway or other highway with two or more lanes traveling in the same direction as the vehicle, merge into the lane farthest from the vehicle at least three hundred feet before the vehicle and proceed with caution, unless otherwise directed; or
300 feet, 20 mphMove Over lawFor any vehicle stopped or on the shoulder with amber, yellow or blue lights, move to the farthest lane at least 300 feet before it on multi-lane roads, or on a two-lane road slow to 20 mph under the limitsdlegislature.gov
Quote
If driving on a two-lane highway, at least three hundred feet before the vehicle, slow to a speed that is at least twenty miles per hour less than the posted speed limit
15 pointsHow many points in any 12 consecutive months can lead to a South Dakota license suspension?Answer: 15 pointsSouth Dakota Driver License Manual, page 14
Quote
Any operator who accumulates 15 points in any 12 consecutive months, or 22 points in any 24 consecutive months, is subject to a driver license suspension.
60 daysHow long is a driver's first suspension under South Dakota's point system?Answer: 60 daysSouth Dakota Driver License Manual, page 14
Quote
First Suspension Second Suspension Subsequent Suspension 60 days 6 months 1 year
30 days, one yearBesides a fine or jail, what license penalty follows a conviction for failing to maintain proof of insurance in South Dakota?Answer: A suspension of at least 30 days and up to one yearSouth Dakota Driver License Manual, page 14
Quote
driver license suspension for a period of not less than 30 days or more than one year

Speed limits

4 numbers
NumberWhat it’s aboutSource
25 mphSpeed limits: Business & residence districts25 mph in urban areas not zoned or postedsdlegislature.gov
Quote
In urban areas which are not zoned or posted as provided in § 32-25-7 , the maximum lawful speed shall be twenty - five miles per hour.
15 mphSpeed limits: School zones15 mph when passing a school during recess or while children are going to or leaving schoolsdlegislature.gov
Quote
When passing a school during a school recess or while children are going to or leaving school during the opening or closing hours, the maximum lawful speed shall be fifteen miles per hour.
20 mphOn a two-lane highway, you approach a stopped vehicle using amber warning lights. How much must you slow down?Answer: To at least 20 mph below the posted limitSouth Dakota Driver License Manual, page 2
Quote
motorists must slow to a speed that is at least twenty miles per hour less than the posted speed limit
80 mphYou are driving on an interstate highway in South Dakota where no lower speed limit is posted. What is the maximum speed allowed by state law?Answer: 80 mphSouth Dakota Department of Public Safety, Driver Licensing Program website
Quote
no person may drive a vehicle upon the national system of interstate highways at a speed in excess of eighty miles per hour.

Distances & following gaps

14 numbers
NumberWhat it’s aboutSource
15 ftSchool busesRed lights flashing: complete stop at least 15 ft from the bus until the lights go offsdlegislature.gov
Quote
The operator of a motor vehicle approaching a school bus that has its red signal lights flashing shall make a complete stop. The stopped vehicle must be at least fifteen feet from the school bus and must remain stopped until the flashing red signal lights are extinguished.
100 miles, 2 hoursYou are on a long trip. How often does the manual suggest planning to stop to fight fatigue?Answer: About every 100 miles or 2 hoursSouth Dakota Driver License Manual, page 18
Quote
Plan to stop about every 100 miles or 2 hours.
100 feetAt least how far before an intersection must you signal a turn in South Dakota?Answer: 100 feetSouth Dakota Driver License Manual, page 49
Quote
At least 100 feet from an intersection.
500 feetNear the crest of a hill on an undivided highway, when is a U-turn prohibited?Answer: When other drivers could not see your vehicle within 500 feetSouth Dakota Driver License Manual, page 39
Quote
where the vehicle cannot be seen by the driver of any other vehicle with 500 feet approaching from any direction
10 seconds, 1,600 feetAt 55 mph, about how much clear road do you need to pass a vehicle on a two-lane highway?Answer: About 10 seconds, or over 1,600 feetSouth Dakota Driver License Manual, page 53
Quote
At 55 mph you will travel over 800 feet in 10 seconds. So will an oncoming vehicle. That means you need over 1600 feet or about one-third of a mile to pass safely.
4 secondsWhat minimum following distance does the South Dakota manual recommend behind the vehicle ahead?Answer: 4 secondsSouth Dakota Driver License Manual, page 51
Quote
Always try to keep a minimum following distance of 4 seconds between your car and the vehicle in front.
158 feetAbout how far does it take to brake to a stop from 50 mph on dry pavement with good brakes, not counting reaction time?Answer: About 158 feetSouth Dakota Driver License Manual, page 50
Quote
At 50 mph on dry pavement with good brakes, it can take about 158 feet.
200 feetOn a road posted at 35 mph or more, how far behind a snowplow with its red or amber lights on must you stay?Answer: At least 200 feetSouth Dakota Driver License Manual, page 67
Quote
On roads with a posted speed limit of 35 mph or more, the law requires drivers to stay at least 200 feet behind a snowplow when its red or amber lights are on.
3 feetOn a road posted at 35 mph or less, how much space must you leave when passing a bicyclist going your way?Answer: At least 3 feetSouth Dakota Driver License Manual, page 62
Quote
allow a minimum of a three foot separation between the right side of the driver's vehicle
6 feetYou are passing a bicyclist on a highway posted at 55 mph. What does South Dakota law require?Answer: At least 6 feet of space, and you may partly cross the center line if safeSouth Dakota Driver License Manual, page 62
Quote
shall allow a minimum of six feet separation if the posted limit is greater than thirty-five miles per hour
200 feetBehind a large truck, how far back can its rear blind spot (No-Zone) extend?Answer: Up to 200 feetSouth Dakota Driver License Manual, page 63
Quote
large vehicles have huge blind spots directly behind them that extend up to 200 feet
300 feetOn an interstate with two lanes in your direction, you approach a stopped tow truck using amber lights. What does South Dakota's move-over law require?Answer: Merge into the lane farthest from it at least 300 feet before reaching itSouth Dakota Driver License Manual, page 2
Quote
merge into the lane farthest from the vehicle at least three hundred feet before the vehicle and proceed with caution
500 feetWhen must you dim your high beams for an oncoming vehicle?Answer: When you come within 500 feet of itSouth Dakota Driver License Manual, page 55
Quote
Dim the high beams whenever you come within 500 feet (about a one block distance) of an oncoming vehicle.
200 to 300 feetIf your vehicle breaks down on the highway, how far behind it should you place emergency flares?Answer: About 200 to 300 feetSouth Dakota Driver License Manual, page 58
Quote
Place emergency flares about 200 to 300 feet behind the vehicle

Parking

2 numbers
NumberWhat it’s aboutSource
15 feetYou must park on a rural highway. How much road width must be left for other traffic to pass your vehicle?Answer: At least 15 feetSouth Dakota Driver License Manual, page 43
Quote
If parked on a rural highway, there must be at least 15 feet of road width for other traffic to pass the vehicle.
500 feetWhen parked on a rural highway, from how far away in either direction must your vehicle be visible?Answer: At least 500 feetSouth Dakota Driver License Manual, page 43
Quote
The vehicle must be visible for at least 500 feet in either direction.

Ages, permits & the test

10 numbers
NumberWhat it’s aboutSource
80%Passing scoresd.gov
Quote
Pass a knowledge test with a score of 80% or higher. This test will cover rules of the road and safe-driving practices.
$38Feesd.gov
Quote
Instruction Permit $38
275 daysA 14-year-old has not taken driver education. How long must they hold the Instruction Permit before upgrading to a Restricted Minor's Permit?Answer: 275 daysSouth Dakota Driver License Manual, page 8
Quote
must hold the valid permit continuously for 275 days
80%To qualify for the shorter 180-day Instruction Permit holding period, what must a minor achieve in an approved driver education course?Answer: A score of 80% or better on both the written and driving portionsSouth Dakota Driver License Manual, page 8
Quote
score of 80% or better on both written and driving portions of driver education
50 hoursHow many hours of adult-supervised driving must a minor complete on a South Dakota Instruction Permit?Answer: 50 hoursSouth Dakota Driver License Manual, page 8
Quote
The driver must complete 50 hours of adult supervised driving on an Instruction Permit
one yearUnder 18 and driving on an Instruction Permit, who may supervise you?Answer: A parent, guardian or other adult with a valid license and at least one year of driving experienceSouth Dakota Driver License Manual, page 8
Quote
The adult must be a parent/legal guardian or other adult with a valid driver’s license and at least one year of driving experience.
six monthsWhat is required before a minor can upgrade to a Restricted Minor's Permit?Answer: No traffic violation convictions in the six months before applyingSouth Dakota Driver License Manual, page 8
Quote
not have been convicted of a traffic violation during the six months prior to application for the Restricted Minor’s Permit
6-monthHow many attempts does one South Dakota test fee cover, and over what period?Answer: 3 attempts within a 6-month periodSouth Dakota Driver License Manual, page 10
Quote
You are allowed 3 opportunities to test for each fee paid within a 6-month period.
two weeksWhat happens if someone is caught cheating on the South Dakota knowledge test?Answer: They must wait at least two weeks before testing againSouth Dakota Driver License Manual, page 10
Quote
you will be required to wait a minimum of two weeks before being allowed to test again
90 daysYou move to South Dakota with a valid non-commercial license from another state. How long do you have to apply for a South Dakota license?Answer: 90 daysSouth Dakota Driver License Manual, page 5
Quote
you are required to apply for a South Dakota driver license within 90 days of establishing residency in South Dakota

Time limits & deadlines

2 numbers
NumberWhat it’s aboutSource
$1,000, $2,000CrashesIn South Dakota, if a crash injures or kills anyone, or causes apparent damage of $1,000 or more to any one person's property or $2,000 in total, the driver must immediately notify the nearest law enforcement officer with jurisdictionsdlegislature.gov
Quote
accident resulting in bodily injuries or death to any person or property damage to an apparent extent of one thousand dollars or more to any one person's property or two thousand dollars per accident shall immediately, by the quickest means of communication, give notice of the accident to the nearest available law enforcement officer
15 to 20-minuteYou begin to feel tired while driving on the highway. What does the manual recommend?Answer: Pull off at the next exit or rest area and take a 15 to 20-minute napSouth Dakota Driver License Manual, page 19
Quote
pull off at the next exit or rest area to take a 15 to 20-minute nap

Seat belts, lights & equipment

6 numbers
NumberWhat it’s aboutSource
under 18Seat beltsIn South Dakota the driver and front-seat passengers must wear seat belts, and everyone under 18 must be belted in any seatsdlegislature.gov
Quote
transporting a passenger who is at least five and under eighteen years of age shall assure that the passenger is wearing a properly adjusted and fastened safety seat belt system
40 poundsSeat beltsChildren under 5 must ride in a child restraint, unless they weigh at least 40 pounds and use a seat beltsdlegislature.gov
Quote
The requirements of this section are met if the child is under five years of age and is at least forty pounds in weight by securing the child in a seat belt.
under 18Under South Dakota's seat belt law, who must wear a seat belt in a passenger vehicle?Answer: The driver, every front-seat passenger, and anyone under 18South Dakota Driver License Manual, page 26
Quote
The law requires that all operators, front seat passengers and children under the age of 18 wear appropriate safety restraints while the vehicle is in motion.
five yearsUnder South Dakota law, a child under what age must be secured in a child passenger restraint system?Answer: Under five years of ageSouth Dakota Driver License Manual, page 27
Quote
Any operator of any passenger vehicle transporting a child under five years of age on the streets and highways of this state shall properly secure the child
10 inchesHow far should your chest be from the steering wheel?Answer: About 10 inchesSouth Dakota Driver License Manual, page 25
Quote
There should be 10 inches between your chest and the steering wheel.
35%What is the darkest window tint South Dakota allows on the front side windows next to the driver?Answer: Tint that lets in no less than 35% of lightSouth Dakota Driver License Manual, page 24
Quote
application that reduces the light transmittance to a level below 35%

Other numbers

1 number
NumberWhat it’s aboutSource
15 mphSchool busesAmber lights: slow to 15 mph or less and pass with cautionsdlegislature.gov
Quote
The operator of a motor vehicle approaching a school bus that has its red signal lights flashing shall make a complete stop. The stopped vehicle must be at least fifteen feet from the school bus and must remain stopped until the flashing red signal lights are extinguished.

Memory tips

How to study them (our advice, not official rules):

  • Learn the number with its unit and its place. “15 feet from a hydrant” sticks; “15” on its own gets mixed up with 15 mph.
  • Say the answer before you look. Recalling the number yourself is harder than spotting it among four options, and it is what makes it stick.
  • Come back to the ones you miss. The quiz above brings missed questions back more often. Short rounds over several days beat one long session.

Questions about the numbers

What numbers do I need to know for the South Dakota permit test?

Mostly distances (how close you may park to a hydrant or crosswalk, when to signal, when to dim your high beams), speed limits, blood-alcohol limits, and the ages, hours and deadlines for your permit and license. This page lists 52 of them for South Dakota, each with its source.

Why focus on numbers?

A California DMV study of its own knowledge test found that many of the hardest questions “are numerical and have correct answers that must be learned by rote memorization.” Numbers are easy to mix up under pressure, so they are worth drilling on their own.

Where do these numbers come from?

Each one is quoted from the South Dakota Driver License Manual, South Dakota statutes or DPS pages. Our build checks that every number on this page appears word for word in the quote it cites.

Is the numbers drill free?

Yes. The table and the numbers quiz are free and unlimited, and so are the first 20 flashcards.

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