Free · 30 short lessons · Quoted from the manual
Idaho Driver Handbook, Chapter by Chapter
Start with lesson 1Every chapter of the Idaho Driver's Handbook that matters for the written test, cut down to the rules and exact numbers you need. Each point links to the manual text it comes from, with the page, and ends with questions from our free Idaho practice test.
30 lessons in handbook order
Read one lesson, answer its 3 check questions, then drill that topic in the practice test. Most lessons take about 5 minutes.
- Lesson 1One Driver, One License, One RecordLaws and paperwork
Driver training and instruction permits
Idaho drivers under 17 must finish an approved driver training program before they can be licensed. Older beginners can practice with a Class D instruction permit and a licensed adult.
9 key points · 8 numbers · Handbook pp. 3 to 19
- Lesson 2One Driver, One License, One RecordLaws and paperwork
Graduated Driver's License rules
New Idaho drivers under 17 must complete a supervised instruction period before they can test for a license. Young licensed drivers also face daylight and passenger limits.
8 key points · 6 numbers · Handbook pp. 16 to 19
- Lesson 3One Driver, One License, One RecordLaws and paperwork
The vision, knowledge and skills tests
You must be at least 15 to take Idaho's knowledge and skills tests. Know the vision standard, how many mistakes are allowed and how long to wait after a failure.
8 key points · 4 numbers · Handbook pp. 32 to 37
- Lesson 4One Driver, One License, One RecordLaws and paperwork
Expiration, renewal, extensions and address changes
Idaho licenses expire on your birthday, and young drivers' licenses expire shortly after they turn 18 or 21. You must report an address change within 30 days.
7 key points · 7 numbers · Handbook pp. 17 to 31
- Lesson 5Vehicle Equipment & SafetyLaws and paperwork
Required equipment, seat belts and child seats
Idaho has no annual safety inspection, but you may not drive a mechanically unsafe vehicle. The law sets exact distances for brakes, lights, horns and mirrors, and requires seat belts and child seats.
9 key points · 10 numbers · Handbook pp. 38 to 42
- Lesson 6Highway & Vehicle KnowledgeRoad signs
Regulatory and work zone signs
Regulatory signs tell you the law and are usually black and white or red and white. Orange signs, cones and barricades mark work zones, where you must slow down and stay alert.
9 key points · 0 numbers · Handbook pp. 44 to 48
- Lesson 7Highway & Vehicle KnowledgeRoad signs
Warning signs
Most Idaho warning signs are black on yellow diamonds, and school signs may be fluorescent yellow green. They warn of unexpected conditions so you can slow down or act in time.
8 key points · 1 numbers · Handbook pp. 49 to 52
- Lesson 8Highway & Vehicle KnowledgeRoad signs
Guide signs and barricades
Guide signs use color to show whether they give directions, services or points of interest. Barricades tell you whether a road is closed or which side to pass on.
6 key points · 0 numbers · Handbook pp. 47 to 54
- Lesson 9Highway & Vehicle KnowledgeSignals and markings
Traffic signals
Idaho signals follow a red, yellow and green order and use arrows and flashing lights with their own meanings. A signal that is not working is treated like a four way stop.
9 key points · 0 numbers · Handbook pp. 55 to 56
- Lesson 10Traffic Laws & the Rules of the RoadSignals and markings
Stopping at red lights and pedestrian beacons
Idaho law tells you exactly where to stop at a red light and when you may turn. Pedestrian hybrid beacons stop traffic at midblock crosswalks.
8 key points · 0 numbers · Handbook pp. 56 to 69
- Lesson 11Highway & Vehicle KnowledgeSignals and markings
Pavement markings
Yellow lines separate traffic going opposite ways and white lines separate lanes going the same way. Solid lines limit passing and lane changes.
8 key points · 0 numbers · Handbook pp. 58 to 60
- Lesson 12Highway & Vehicle KnowledgeSignals and markings
Railroad crossings and roundabouts
A collision with a train is far deadlier than other crashes, so Idaho sets exact stopping distances at crossings. Roundabouts run counter clockwise, and you yield to traffic already in the circle.
8 key points · 3 numbers · Handbook pp. 60 to 62
- Lesson 13Traffic Laws & the Rules of the RoadSpeed limits
Speed limits and the basic rule
Idaho's basic rule requires a reasonable and prudent speed at all times, even below the posted limit. Default maximums range from 35 mph in towns to 80 mph on some rural interstates.
8 key points · 4 numbers · Handbook pp. 68 to 83
- Lesson 14Traffic Laws & the Rules of the RoadSpeed limits
Passing and slow vehicles
Idaho's mountains and canyons make passing risky, so the law bans it near intersections, crossings, bridges and hills. A special rule lets some drivers exceed the limit briefly while passing on fast two lane roads.
8 key points · 5 numbers · Handbook pp. 76 to 79
- Lesson 15Traffic Laws & the Rules of the RoadSignals and markings
Turns, signals and U turns
Many crashes are caused by improper turns. Idaho requires a signal 100 feet or five seconds ahead and sets rules for turn lanes and U turns.
7 key points · 2 numbers · Handbook pp. 58 to 100
- Lesson 16Traffic Laws & the Rules of the RoadRight of way
Right of way between drivers
In Idaho, right of way is something to be given, not taken. The rules cover four way stops, uncontrolled intersections, T intersections, left turns and dark signals.
7 key points · 0 numbers · Handbook pp. 74 to 76
- Lesson 17Traffic Laws & the Rules of the RoadRight of way
Yielding to pedestrians and funeral processions
Drivers must yield to pedestrians in crosswalks, when leaving driveways, and to blind pedestrians. Funeral processions always get the right of way.
6 key points · 0 numbers · Handbook pp. 70 to 78
- Lesson 18Traffic Laws & the Rules of the RoadEmergencies
Stopping for school buses and emergency vehicles
Idaho law lists the times you must stop, including for police, emergency vehicles and school buses. Knowing where and how long to stop keeps children and responders safe.
6 key points · 1 numbers · Handbook p. 70
- Lesson 19Traffic Laws & the Rules of the RoadSafe driving
Following distance, parking and backing
Idaho recommends at least three seconds of following distance and more at high speed or in bad weather. It also sets exact distances for parking and forbids backing on freeways.
9 key points · 6 numbers · Handbook pp. 71 to 82
- Lesson 20The Driving TaskSafe driving
Defensive driving, distractions and fatigue
Driver error causes more than 90% of highway crashes. Scanning ahead, avoiding distractions and never driving drowsy are the best defenses.
9 key points · 5 numbers · Handbook pp. 86 to 94
- Lesson 21Sharing the RoadEmergencies
Emergency vehicles and the move over law
When an emergency vehicle comes up behind you, pull right and stop. When you pass one that is stopped with lights flashing, you must slow down and, on multi lane roads, move over.
6 key points · 0 numbers · Handbook pp. 42 to 133
- Lesson 22Sharing the RoadSafe driving
Pedestrians, children, horses and bicyclists
People on foot, on horseback and on bicycles are easily hurt and often hard to see. Idaho asks for at least three feet when passing a bicyclist and patience around children and horses.
8 key points · 2 numbers · Handbook pp. 96 to 101
- Lesson 23Sharing the RoadSafe driving
Right hooks, motorcycles and large vehicles
Bicycles, motorcycles and large trucks each create special risks at turns and in blind spots. Give motorcycles a full lane and extra following room, and give trucks space to stop and turn.
9 key points · 2 numbers · Handbook pp. 99 to 106
- Lesson 24Sharing the RoadLaws and paperwork
Mountains, open range and winter driving
Idaho's mountains, open range and winters bring rules and risks most drivers do not see elsewhere. Livestock often have the right of way, and studded tires are allowed only part of the year.
8 key points · 2 numbers · Handbook pp. 42 to 115
- Lesson 25Sharing the RoadSafe driving
Night, fog, rain and flash floods
At night and in bad weather you see less and your tires grip less. Idaho gives exact distances for headlights and speeds where hydroplaning begins.
8 key points · 5 numbers · Handbook pp. 43 to 112
- Lesson 26Be PreparedEmergencies
Skids, emergency braking and car trouble
Emergencies give you only a moment to act, so know the right move ahead of time. Idaho explains how to recover from a skid, stop with or without ABS, and warn others when your car breaks down.
8 key points · 1 numbers · Handbook pp. 116 to 120
- Lesson 27Be PreparedEmergencies
Crashes and the law
If you are in a crash, Idaho requires you to stop, help and report it when someone is hurt or damage tops $1,500. Minor crashes on major highways should be cleared to the shoulder.
6 key points · 3 numbers · Handbook pp. 119 to 121
- Lesson 28What Affects Your Driving Privilege and RecordLaws and paperwork
Points, suspensions and reinstatement
Idaho gives one to four points for each moving violation and suspends drivers who build up too many. Drivers under 17 face their own GDL penalties.
9 key points · 10 numbers · Handbook pp. 123 to 127
- Lesson 29What Affects Your Driving Privilege and RecordAlcohol and DUI
DUI limits, penalties and test refusal
Idaho sets BAC limits of .02 for drivers under 21, .04 for commercial drivers and .08 for everyone else. Refusing a test or repeating a DUI brings long suspensions.
8 key points · 10 numbers · Handbook pp. 126 to 132
- Lesson 30What Affects Your Driving Privilege and RecordAlcohol and DUI
Administrative suspension and how alcohol affects you
Failing a breath, blood or urine test brings an administrative suspension separate from any court penalty. Alcohol raises crash risk quickly, and only time sobers you up.
9 key points · 6 numbers · Handbook pp. 125 to 130
Read, check, then practice
- Read a lesson. Open any point's source to see the exact manual wording and page.
- Answer the 3 check questions at the end without looking back.
- Drill that topic in the free Idaho practice test, then take a full test when every lesson feels easy.
- Keep the Idaho cheat sheet for a last look before test day.
Source: the Idaho Driver's Handbook (July 2026). Lessons are plain English summaries, not the law itself; where they differ, the manual and the statute govern. Every quote on these pages is checked against our saved copy of the manual. Last checked 2026-09-27.