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.
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.
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.
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
| Number | What it’s about | Source |
|---|---|---|
| 0.08% | Legal BAC limit for adult drivers | sdlegislature.govQuoteThere 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 21 | sdlegislature.govQuoteIt 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 vehicle | sdlegislature.govQuoteNo 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, $2,000 | Drunk driving (DUI)Class 1 misdemeanor (up to 1 year in jail and/or a $2,000 fine) | sdlegislature.govQuoteClass 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 more | South Dakota Driver License Manual, page 20QuoteA 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 20QuoteIn South Dakota, if you are under 21, you can also be arrested for alcohol impairment at 0.02%. |
| 30-day | A 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 license | South Dakota Driver License Manual, page 20QuoteFirst offense is a Class 2 misdemeanor which is punishable by a fine and a 30-day loss of driver license. |
| 3 years | After a DWI conviction in South Dakota, how long must you maintain an SR22 insurance filing?Answer: 3 years from the eligibility date | South Dakota Driver License Manual, page 20QuoteMAINTAIN THIS INSURANCE FOR 3 YEARS FROM THE ELIGIBILITY DATE. |
Fines, points & penalties
5 numbers
| Number | What it’s about | Source |
|---|---|---|
| 300 ft | Move 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 before | sdlegislature.govQuoteIf 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 mph | Move 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 limit | sdlegislature.govQuoteIf 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 points | How many points in any 12 consecutive months can lead to a South Dakota license suspension?Answer: 15 points | South Dakota Driver License Manual, page 14QuoteAny 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 days | How long is a driver's first suspension under South Dakota's point system?Answer: 60 days | South Dakota Driver License Manual, page 14QuoteFirst Suspension Second Suspension Subsequent Suspension 60 days 6 months 1 year |
| 30 days, one year | Besides 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 year | South Dakota Driver License Manual, page 14Quotedriver license suspension for a period of not less than 30 days or more than one year |
Speed limits
4 numbers
| Number | What it’s about | Source |
|---|---|---|
| 25 mph | Speed limits: Business & residence districts25 mph in urban areas not zoned or posted | sdlegislature.govQuoteIn 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 mph | Speed limits: School zones15 mph when passing a school during recess or while children are going to or leaving school | sdlegislature.govQuoteWhen 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 mph | On 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 limit | South Dakota Driver License Manual, page 2Quotemotorists must slow to a speed that is at least twenty miles per hour less than the posted speed limit |
| 80 mph | You 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 mph | South Dakota Department of Public Safety, Driver Licensing Program websiteQuoteno 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
| Number | What it’s about | Source |
|---|---|---|
| 15 ft | School busesRed lights flashing: complete stop at least 15 ft from the bus until the lights go off | sdlegislature.govQuoteThe 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 hours | You are on a long trip. How often does the manual suggest planning to stop to fight fatigue?Answer: About every 100 miles or 2 hours | South Dakota Driver License Manual, page 18QuotePlan to stop about every 100 miles or 2 hours. |
| 100 feet | At least how far before an intersection must you signal a turn in South Dakota?Answer: 100 feet | South Dakota Driver License Manual, page 49QuoteAt least 100 feet from an intersection. |
| 500 feet | Near 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 feet | South Dakota Driver License Manual, page 39Quotewhere the vehicle cannot be seen by the driver of any other vehicle with 500 feet approaching from any direction |
| 10 seconds, 1,600 feet | At 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 feet | South Dakota Driver License Manual, page 53QuoteAt 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 seconds | What minimum following distance does the South Dakota manual recommend behind the vehicle ahead?Answer: 4 seconds | South Dakota Driver License Manual, page 51QuoteAlways try to keep a minimum following distance of 4 seconds between your car and the vehicle in front. |
| 158 feet | About 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 feet | South Dakota Driver License Manual, page 50QuoteAt 50 mph on dry pavement with good brakes, it can take about 158 feet. |
| 200 feet | On 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 feet | South Dakota Driver License Manual, page 67QuoteOn 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 feet | On 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 feet | South Dakota Driver License Manual, page 62Quoteallow a minimum of a three foot separation between the right side of the driver's vehicle |
| 6 feet | You 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 safe | South Dakota Driver License Manual, page 62Quoteshall allow a minimum of six feet separation if the posted limit is greater than thirty-five miles per hour |
| 200 feet | Behind a large truck, how far back can its rear blind spot (No-Zone) extend?Answer: Up to 200 feet | South Dakota Driver License Manual, page 63Quotelarge vehicles have huge blind spots directly behind them that extend up to 200 feet |
| 300 feet | On 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 it | South Dakota Driver License Manual, page 2Quotemerge into the lane farthest from the vehicle at least three hundred feet before the vehicle and proceed with caution |
| 500 feet | When must you dim your high beams for an oncoming vehicle?Answer: When you come within 500 feet of it | South Dakota Driver License Manual, page 55QuoteDim the high beams whenever you come within 500 feet (about a one block distance) of an oncoming vehicle. |
| 200 to 300 feet | If your vehicle breaks down on the highway, how far behind it should you place emergency flares?Answer: About 200 to 300 feet | South Dakota Driver License Manual, page 58QuotePlace emergency flares about 200 to 300 feet behind the vehicle |
Parking
2 numbers
| Number | What it’s about | Source |
|---|---|---|
| 15 feet | You must park on a rural highway. How much road width must be left for other traffic to pass your vehicle?Answer: At least 15 feet | South Dakota Driver License Manual, page 43QuoteIf parked on a rural highway, there must be at least 15 feet of road width for other traffic to pass the vehicle. |
| 500 feet | When parked on a rural highway, from how far away in either direction must your vehicle be visible?Answer: At least 500 feet | South Dakota Driver License Manual, page 43QuoteThe vehicle must be visible for at least 500 feet in either direction. |
Ages, permits & the test
10 numbers
| Number | What it’s about | Source |
|---|---|---|
| 80% | Passing score | sd.govQuotePass a knowledge test with a score of 80% or higher. This test will cover rules of the road and safe-driving practices. |
| $38 | Fee | sd.govQuoteInstruction Permit $38 |
| 275 days | A 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 days | South Dakota Driver License Manual, page 8Quotemust 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 portions | South Dakota Driver License Manual, page 8Quotescore of 80% or better on both written and driving portions of driver education |
| 50 hours | How many hours of adult-supervised driving must a minor complete on a South Dakota Instruction Permit?Answer: 50 hours | South Dakota Driver License Manual, page 8QuoteThe driver must complete 50 hours of adult supervised driving on an Instruction Permit |
| one year | Under 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 experience | South Dakota Driver License Manual, page 8QuoteThe 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 months | What is required before a minor can upgrade to a Restricted Minor's Permit?Answer: No traffic violation convictions in the six months before applying | South Dakota Driver License Manual, page 8Quotenot have been convicted of a traffic violation during the six months prior to application for the Restricted Minor’s Permit |
| 6-month | How many attempts does one South Dakota test fee cover, and over what period?Answer: 3 attempts within a 6-month period | South Dakota Driver License Manual, page 10QuoteYou are allowed 3 opportunities to test for each fee paid within a 6-month period. |
| two weeks | What happens if someone is caught cheating on the South Dakota knowledge test?Answer: They must wait at least two weeks before testing again | South Dakota Driver License Manual, page 10Quoteyou will be required to wait a minimum of two weeks before being allowed to test again |
| 90 days | You 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 days | South Dakota Driver License Manual, page 5Quoteyou are required to apply for a South Dakota driver license within 90 days of establishing residency in South Dakota |
Time limits & deadlines
2 numbers
| Number | What it’s about | Source |
|---|---|---|
| $1,000, $2,000 | CrashesIn 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 jurisdiction | sdlegislature.govQuoteaccident 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-minute | You 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 nap | South Dakota Driver License Manual, page 19Quotepull off at the next exit or rest area to take a 15 to 20-minute nap |
Seat belts, lights & equipment
6 numbers
| Number | What it’s about | Source |
|---|---|---|
| under 18 | Seat beltsIn South Dakota the driver and front-seat passengers must wear seat belts, and everyone under 18 must be belted in any seat | sdlegislature.govQuotetransporting 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 pounds | Seat beltsChildren under 5 must ride in a child restraint, unless they weigh at least 40 pounds and use a seat belt | sdlegislature.govQuoteThe 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 18 | Under 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 18 | South Dakota Driver License Manual, page 26QuoteThe 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 years | Under South Dakota law, a child under what age must be secured in a child passenger restraint system?Answer: Under five years of age | South Dakota Driver License Manual, page 27QuoteAny 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 inches | How far should your chest be from the steering wheel?Answer: About 10 inches | South Dakota Driver License Manual, page 25QuoteThere 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 light | South Dakota Driver License Manual, page 24Quoteapplication that reduces the light transmittance to a level below 35% |
Other numbers
1 number
| Number | What it’s about | Source |
|---|---|---|
| 15 mph | School busesAmber lights: slow to 15 mph or less and pass with caution | sdlegislature.govQuoteThe 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.