Utah Gov. Mike Leavitt has signed into law a measure lifting restrictions that limits the use of unmarked patrol cars by the Utah Highway Patrol.

The limit on unmarked highway patrol vehicles is now one per operation, but SB106, written by Sen. Curtis Bramble, R-Provo, allows for the use of multiple unmarked cruisers with operations that take place in urban areas, are backed by the Public Safety Commissioner, last less than two weeks and target aggressive drivers specifically.

Proponents of the measure said it would not be used all the time and it would not cut down on the use of marked vehicles, Provo's Daily Herald reported. Officers would be required by the bill to be in uniform when using unmarked patrol cars.