Table 3-7. Maximum Posted Speed Limits on Rural Interstates (miles per hour)
The speed limit is another important variable for road users. Speed limits for trucks vary from state to state and often differ from limits set for passenger vehicles.
| State | Truck | Car |
|---|---|---|
| Alabama | 70 | 70 |
| Alaska | 65 | 65 |
| Arizona | 75 | 75 |
| Arkansas | 65 | 70 |
| California | 55 | 70 |
| Colorado | 75 | 75 |
| Connecticut | 65 | 65 |
| Delaware | 65 | 65 |
| District of Columbia1 | 55 | 55 |
| Florida | 70 | 70 |
| Georgia | 70 | 70 |
| Hawaii | 60 | 60 |
| Idaho | 65 | 75 |
| Illinois | 55 | 65 |
| Indiana | 265 | 270 |
| Iowa | 270 | 270 |
| Kansas | 70 | 70 |
| Kentucky | 65 | 65 |
| Louisiana | 70 | 70 |
| Maine | 65 | 65 |
| Maryland | 65 | 65 |
| Massachusetts | 65 | 65 |
| Michigan | 55 | 70 |
| Minnesota | 70 | 70 |
| Mississippi | 70 | 70 |
| Missouri | 70 | 70 |
| Montana | 65 | 75 |
| Nebraska | 75 | 75 |
| Nevada | 75 | 75 |
| New Hampshire | 65 | 65 |
| New Jersey | 65 | 65 |
| New Mexico | 75 | 75 |
| New York | 65 | 65 |
| North Carolina | 70 | 70 |
| North Dakota | 75 | 75 |
| Ohio | 55 | 65 |
| Oklahoma | 75 | 75 |
| Oregon | 55 | 65 |
| Pennsylvania | 65 | 65 |
| Rhode Island | 65 | 65 |
| South Carolina | 70 | 70 |
| South Dakota | 75 | 75 |
| Tennessee | 70 | 70 |
| Texas | 65 | 75 |
| Utah | 75 | 75 |
| Vermont | 65 | 65 |
| Virginia | 65 | 65 |
| Washington | 60 | 70 |
| West Virginia | 70 | 70 |
| Wisconsin | 65 | 65 |
| Wyoming | 75 | 75 |
1Urban Interstate.
2Indiana and Iowa increased speed limits for both cars and trucks by 5 miles per hour beginning July 1, 2005.
Note: 55 miles per hour (mph) = 89 kilometers per hour (kph); 60 mph = 97 kph; 65 mph = 105 kph; 70 mph = 113 kph.
Source: Insurance Institute for Highway Safety, Maximum Posted Speed Limits for Passenger Vehicles as of May 2005, available at http://www.hwysafety.org/safety_facts/state_laws/speed_limit_laws.htm as of June 27, 2005.
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