Driver Safety: Your Condition, Drowsy and Distracted Driving, Cell Phones, Medications and Alcohol, Seat Belts and Their Exemptions, Child Seats and Boosters, Air Bags, Helmets, Pickup Beds and Heat

Written for aiforu2 as the source for a practice-test bank and the on-device tutor for the North Carolina driver license knowledge test. The facts follow the official handbook; the wording is ours.

Source: North Carolina Driver Handbook, N.C. Division of Motor Vehicles, revised May 2025, chapter 4 "Your Driving": Driver Safety and Protecting Yourself and Your Passengers (pp. 41–47).

Your condition

Know your limits and do not drive when too tired or sleepy; plan long trips and know the route. Even short illnesses like a cold, headache or flu make you less alert and slower to respond, and serious long-term conditions come to DMV's attention.

Drowsy driving

At 55 mph a vehicle covers a football field in 3.7 seconds. Drowsy crashes are serious, under-reported, and most common on high-speed rural highways with the driver alone. Warning signs: you cannot remember the last few miles, you hit a rumble strip or drift, you yawn repeatedly, or you struggle to focus or keep your eyes open. Prevent it by sleeping a full night first; stopping when tired (a 15 to 45 minute nap and caffeine help temporarily); getting out at least every two hours to walk; limiting yourself to 300 to 400 miles a day; and avoiding drowsy medications. A tired driver cannot predict a "mini" sleep and cannot react to danger.

Distracted driving and cell phones

Any activity that pulls attention from driving endangers everyone: texting, phoning, eating and drinking, talking to passengers, grooming, reading maps, using navigation, watching video, or adjusting the radio. Distracted drivers react more slowly, miss hazards such as pedestrians or debris, and usually have a hand off the wheel.

North Carolina law: texting or e-mailing while driving is illegal for everyone; drivers under 18 may not use a cell phone or related technology at all while the vehicle is moving, except to call 911 in an emergency; and school bus drivers may not use a phone while driving. Use a phone only when necessary, for emergencies or to reach a parent, guardian or spouse; let a passenger place the call; let it ring and call back when stopped; and secure the phone so it does not become a projectile in a crash.

Medications and alcohol

Learn how any prescription or over-the-counter drug affects you before driving, and drive as little as possible while taking one. About 38 percent of traffic deaths involve alcohol. Alcohol is a depressant: it slows brain function so you cannot respond or decide quickly, distorts your judgment of speed and distance, gives false confidence, makes doing two things at once hard (steering while missing lights, side-street cars or pedestrians), upsets balance, and makes you sleepy. Only time sobers you; coffee, a meal or a cold shower will not. Plan a ride, share a taxi, use transit, stay over, or ride with someone who has not been drinking.

Seat belts

Over a lifetime of driving you face about a one-in-three chance of serious injury or death in a crash. The driver and every passenger in a vehicle built with seat belts must wear them whenever the vehicle is moving forward on a street or highway, even with air bags; with automatic shoulder harnesses the lap belt must be worn too. Children under 16 belong in an age- and weight-appropriate restraint.

Exempt from the belt law: a driver or occupant with a medical condition or certified phobia that prevents restraint; rural letter carriers and newspaper carriers on their routes; drivers or passengers making frequent stops or deliveries at no more than 20 mph between stops; property-carrying vehicles in intrastate agriculture; vehicles not required to have belts; motor-home occupants other than the driver and front passengers when the motor home has at least four of cooking, refrigeration, a toilet, heating or air conditioning, running water, and separate electrical or LP gas supply; and situations where every belted seat is already occupied.

Child safety

Car crashes are the number one threat to young children's lives, and properly used, crash-tested seats could save seven of ten children killed unrestrained. Choose a seat that fits your car and that you will use every time; low-cost rental programs exist through service groups, hospitals and health departments.

The law: a driver carrying anyone under 16 must secure each such passenger in a child restraint or seat belt meeting the federal standards of its manufacture date. A child under 8 and under 80 pounds must ride in a weight-appropriate child restraint. With an active passenger-side front air bag and a rear seat, a child under 5 and under 40 pounds must ride in the rear seat unless the restraint is designed for a front air bag. If no seating position with a lap-and-shoulder belt is free, a child under 8 weighing 40 to 80 pounds may use a properly fitted lap belt alone.

Boosters bridge the gap between a child seat and a seat belt: an adult belt fits only when the lap portion sits snugly across the hips, not the stomach, and the shoulder portion crosses the shoulder and chest, not the face or throat.

Children and air bags

Air bags save lives but deploy at up to 200 mph, and the force hurts anyone too close. Children 12 and under ride buckled in a rear seat; a rear-facing infant seat must never go in front of a passenger air bag. Adults wear both lap and shoulder belts on every trip, the lap belt low across the hips and the shoulder belt over the collarbone and across the breastbone, and move the front seats as far back as practical.

Helmets, pickup beds and hot cars

Every motorcycle and moped operator and passenger must wear a helmet meeting FMVSS 218: a firm inner liner about one inch thick, a DOT symbol applied by the manufacturer on the back, and a permanent manufacturer's label inside; a novelty helmet with a stick-on DOT sticker does not comply.

Children under 16 may not ride in the open bed of a pickup truck unless an adult in the bed supervises them, they are belted with a seat belt rated at 5,000 pounds and approved by the Commissioner, an emergency exists, the truck is in a parade, or it is in agricultural use. The driver is responsible; the ticket is a $25 infraction with no court costs, points or insurance surcharge.

Never leave children or animals in a parked vehicle: in sun the inside can run 40 to 50 degrees hotter than outside, even with a window cracked, causing dehydration, heat stroke and death. In winter, snow blocking the exhaust can push odorless, deadly carbon monoxide into the car while it warms up.

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