Idaho Driving Laws

Updated: November, 2017

DrivingLaws101.com - List of Idaho Driving Laws Summary of common traffic laws in Idaho – Speed limits, License Renewals, Learners Permits, Drunk Driving Laws, and more. For more information, visit the Idaho Office of Highway Safety website.

Speed Limits

In Idaho, the maximum speed limit for cars is 80 mph. The maximum highway speed for trucks is only 70 mph. Maximum speeds may only apply to small sections of designated roads - not all highways. Always observe posted traffic laws and drive safely for the weather and road conditions.

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Learners Permits

Idaho allows new drivers to get their learners permit at the age of 14 years and 6 months. You must have your provisional license for a minimum of 6 months. Drivers can then get their intermediate license at 15. An Intermediate License imposes restricts on when you are allowed to drive and how many passengers are allowed in the car, but allows you to drive yourself without an instructor in the car.

In Idaho, drivers can obtain their full drivers license at the age of 16.

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License Renewal

Idaho requires you to renew your license every 4 years. There are additional provisions for older drivers:

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Work Zones

The state of Idaho enforces increased penalties for speeding violations within work zones. These increased penalties are known as Work Zone Enhancements. Work Zone Enhancements can be enforced even if workers are not present as long as road work signs are posted. In Idaho, Work Zone Enhacements are:

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Drunk Driving Laws

The legal Blood Alcohol Content (BAC) is 0.08%. Driving while above the legal limit is called Driving Under the Influence. Driving while above certain BAC is called Driving while intoxicated and carries a heavier penalty. In Idaho, driving with a BAC above 0.20% will trigger automatic enhanced minimum penalties.

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Texting while Driving

Most states do not allow cellphone use while driving. In Idaho, hand-held devices such as phones and mp3 player are are not banned. Handheld devices bans prohibit talking on the phone without a hands-free system.

Texting while driving is banned in Idaho. Texting while driving is concidered a primary offense. This means that you can be pulled over with texting as the only offense. In Idaho, distracted driving is listed as a category on police crash report forms.

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Seat Belt Laws

Idaho requires seabelt use. Seatbelt enforcement is concidered secondary, which means you cannot be pulled over for violating a seatbelt law. The fine for a seatbelt law violation in Idaho is $10.00. Safety belt laws very state-by-state. Consult your states Department of Transportation for specific seatbelt use laws.

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