Idaho

GHSA maintains data on state laws surrounding a number of highway safety issues. Below is information regarding laws in the state of Idaho. For more information, consult the State Highway Safety Office.

Idaho
Motorcycle Helmet Required?

Helmets required for all riders under 18. Universal helmet law repealed 1978.

Idaho
Length of Regular Renewal Cycle

Choice of 4 or 8 years for drivers ages 21-62

Idaho
Provisions for Mature Drivers

63 and over: renewal every 4 years

Idaho
DUID Zero Tolerance or Per se Laws for Some Drugs

None

Idaho
Marijuana Possession and Use

Illegal

Idaho
Marijuana Impaired Driving

None

Idaho
Rural Interstates: Trucks (MPH)

70

Idaho
Urban Interstates: Cars (MPH)

75, 80 on specified segments

Idaho
Urban Interstates: Trucks (MPH)

65

Idaho
Other Limited Access Roads: Cars (MPH)

70

Idaho
Other Limited Access Roads: Trucks (MPH)

70

Idaho
Rural Interstates: Cars (MPH)

75, 80 on specified segments

Idaho
Increased penalty for high BAC

0.2

Idaho
Administrative license suspension on first offense

90 days

Idaho
Limited driving privileges during suspension

After 30 days

Idaho
Ignition Interlocks

Mandatory for all convictions

Idaho
Open container laws

Yes

Idaho
Repeat Offender Laws

Yes

Idaho
Child Restraint Required

Under 7 yrs

Idaho
Adult Safety Belt Permissible

7 yrs and older

Idaho
Full Privilege Minimum Age

Nighttime driving: 16 Driving with passengers: 15 years, 6 months

Idaho
Learner Stage: Minimum Age (Years/Months)

14 / 6

Idaho
Learner Stage: Minimum Duration (Months)

6

Idaho
Learner Stage: Supervised Driving Hours (Night Hours in Parenthesis)

50 (10)

Idaho
Intermediate Stage: Minimum Age (Years/Months)

15

Idaho
Intermediate Stage: Nighttime Driving Restriction

10 p.m. - 5 a.m.

Idaho
Intermediate Stage: Passenger Restrictions (Except Family, Unless Noted)

First 6 months: no more than 1 under 17

Idaho
Type of Law

Secondary

Idaho
Who is Covered?

7 and over (primary law for drivers under 18)

Idaho
In What Seat?

All

Idaho
Hand-Held Ban?

Yes. Primary law.

Idaho
All Cell Phone Ban? School Bus Drivers

No

Idaho
All Cell Phone Ban? Novice Drivers

No

Idaho
Text Messaging Ban?

All drivers. Primary law.

Idaho
Speed Cameras: State Law

None

Idaho
Speed Cameras: Where Permitted

n/a

Idaho
Red Light Cameras: State Law

None

Idaho
Red Light Cameras: Where Permitted

n/a
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