Oklahoma has 930 miles of interstate highways, 1,893 miles of other state highways, 606 miles of toll roads, 284 miles of state park roads, 84,482 miles of county roads, and 12,541 miles of local city streets.

Seat belts are required in Oklahoma for the driver and front-seat passenger, and headlights are required by law to be turned on when it rains. Child restraints are required for children under 4 years of age weighing 60 pounds or less. The minimum driving age is 16. Persons under the age of 18 are required to wear a helmet when riding a motorcycle or motor scooter.

Oklahoma has numerous toll roads (or turnpikes). Many smaller interchanges require exact change. Turnpike fees for 2-axle vehicles range from $.25 to $4.00. Rates are higher for larger vehicles. For more information on Turnpike Tolls & Access, call 800-745-3727 or visit pikepass.com.

The maximum speed limit on Oklahoma turnpikes is 75 mph. On interstate highways, the maximum speed limit is 70 mph. Other state and U.S. highways have a speed limit of 65 mph or 55 mph.

Twenty-three railway companies crisscross Oklahoma with 2,877 miles of track, in addition to 866 miles of state-owned track. Amtrak’s Heartland Flyer offers daily service between Oklahoma City and Fort Worth, with stops in Norman, Purcell, Pauls Valley, Ardmore, and Gainesville.

Commercial Motor Vehicle Information

Size Limitations
Width: 8’6”
Height: 13’5”
Semitrailer in Tractor-Semitrailer Combo: 59’6”
Full Trailer: 29’

Weight Limitations (in lbs.)
Single Axle: 20,000
Tandem Axle: 34,000
Gross Vehicle Weight: 80,000

Regulatory Agencies
A number of state agencies regulate various aspects of operating commercial vehicles within Oklahoma. Depending on the type of usage of the vehicle, laws, rules or regulations by state and federal agencies may apply.

Oklahoma Corporation Commission
P.O. Box 52000
2101 N. Lincoln Blvd.
Oklahoma City, OK 73105
405-521-2211

For inquiries regarding the transportation of:

• Persons or property for-hire in interstate or in intrastate commerce
• Your own property, intrastate, in vehicles over 26,000 GVWR (manufacturer’s weight rating) or GCWR (truck and trailer)
• Deleterious substances or store them in a truck yard wash pit
• Household goods
• Placardable amounts (manifested loads) of hazardous waste

Oklahoma Department of Public Safety
P.O. Box 11415
3600 North Martin Luther King Avenue
Oklahoma City, OK  73111
405-425-2424

For inquiries regarding:

• Operation of vehicles in intrastate commerce over 26,000 GVWR (manufacturer’s weight rating) or GCWR (truck and trailer) and don’t need an authority from the Corporation Commission, call 405-521-6738
• Operation of vehicles with a seating capacity of 16 passengers or more, call 405-521-6738
• Oversize or overweight permits, call 877-425-2390
• Certification to operate as an escort vehicle for oversize trucks, call 405-425-2206
• Motor Vehicle Records (MVR), call 405-425-2262
• Commercial Driver’s License (CDL), call 405-425-2020

Oklahoma Tax Commission
Motor Vehicle Division
2501 N. Lincoln Blvd.
Oklahoma City, OK 73194
405-521-3160

For inquiries regarding:

• Tag or title your vehicle
• Tagging your vehicle (IRP) to operate in other states
• Fuel permits (IFTA) to operate in other states

Federal Motor Carrier Safety Administration
300 N. Meridian, Suite 106 South
Oklahoma City, OK 73107
405-605-6047
405-605-6176 (Fax)

For inquiries regarding:

• Persons or property for-hire in interstate commerce
• Your own property, interstate, in vehicles over 10,000 GVWR (manufacturer's weight rating) or GCWR (truck and trailer) and do not have a USDOT number
• Routing of placardable amounts of hazardous materials

Oklahoma Department of Agriculture
2800 N. Lincoln Blvd
P.O. Box 528804
Oklahoma City, OK 73105
405-521-3864
405-522-3864 (Fax)

For inquiries regarding:

• Livestock Health Certificates

Mileage Chart