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Missouri
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Alerts
No major alerts at this time.
Construction/Conditions 
800-222-6400 888-275-6636
Federal Highway Admin
573-636-7104
Cell Emergency Number
*55 *55
Time Zone
Central
Speed Limits
Rural Interstates Cars: 70, Trucks: 70
Urban Interstates Cars: 60, Trucks: 60
Other Roads Cars: 65, Trucks: 65
Urban Interstates Cars: 60, Trucks: 60
Other Roads Cars: 65, Trucks: 65
Work Zone Special Limits
Speeding or passing, Additional $250 (1st offense); additional $300 (subsequent offenses), Workers Must Be Present, Signs Must Be Present
Rest Area Overnight Parking
Overnight is Permitted
State Handheld Device Ban
No
State Texting Ban Laws
No
Seat Belt Laws
8 - 15 (primary) in All Seats, >16 in Front Seats, $50, $10 (driver and passenger)
Sobriety Checkpoints
Yes, Once or twice a month, Upheld under state and Federal Constitution
High Blood Alcohol Content
0.15
Open Container Law
Motorcycle Helmet Laws
All riders
Bicycle Helmet Laws
no law
Gun Law Simple Summary
Over 21 can carry legally owned gun in a vehicle
Shoot First/Stand Ground Law
Yes - Law permits deadly force while in a vehicle with no duty to retreat
Radar Detectors
Legal
Diesel Tax (State and Federal)
0.417
Truck Access Policies
10 mi
Triple Towing
Yes
Tow Brake Laws Towing
Independent brakes are not required except on trailers with by 5th wheel and kingpin.
See Restricted Routes See Hazmat Routes See Idling Laws
