Nebraska has joined other states in raising traffic law enforcement along Interstate 80.

The Nebraska State Patrol is increasing its presence and making more vehicle checks. The extra efforts began Wednesday and run through the end of the month.

Several state roads departments along I-80 are displaying messages on electronic boards reminding motorists to wear their seat belts, obey the speed limits, avoid cellphone use and pay attention. Also, don’t drive drunk or otherwise impaired.

The interstate runs 2,900 miles, from the San Francisco to Teaneck, N.J.