Montana is now the only state in the U.S. that does not have a statewide ban on texting behind the wheel for at least some drivers.

The Montana Highway Patrol says cellphone use by drivers has contributed to more than 1,600 crashes in the past 9 years.

"It's so common," said Montana Highway Patrol Capt. Art Collins. "You know, you go down the road and probably three-quarters of the people going down the road anymore have a phone stuck in their ear.

It's also common for states to have some kind of ban on texting behind the wheel - unless you're in Montana.

Several cities in the Treasure State have ordinances, but there's no statewide law that stops drivers from being on their cell phones.

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