It's frustrating to be in the left lane of traffic, stuck behind a slow driver.

That's why Arizona state law controls when and how a driver can travel below the posted speed limit.

Arizona law enforcement can, and will , pull over drivers believed to be impeding or slowing down traffic flow while traveling below the posted speed limit.

Some Arizona politicians believe those laws need to be extended to those driving slowly in the left lanes of travel, mirroring laws already established in other states.

Here's a look at how state law handles slow left-lane drivers and what you need to know to stay safe behind the wheel.

Arizona drivers must operate at a safe speed

Driving below the speed limit in Arizona is illegal when doing so impedes or blocks traffic, according to state law .

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