On a recent road trip, a cop pulled us over to let us know that we'd been in the left lane for a while and in that state, the left lane was solely for passing people. He noticed our out-of-state plates and figured we didn't know. He was right: in my home state, I generally sit in the left lane for ages when I'm going a long way, since I drive rather fast.

In what states are you not supposed to linger in the left lane? I don't want to get in trouble when road tripping in the future.


According to this link:

States which only allow passing in the left lane:

  • Arkansas
  • Illinois
  • Kentucky
  • Louisiana
  • Maine
  • Massachusetts
  • New Jersey

States which require slower traffic to move right:

  • Alabama
  • Arizona
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Hawaii
  • Idaho
  • Indiana
  • Iowa
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • New Hampshire
  • New Mexico
  • New York
  • North Dakota
  • Oklahoma
  • Oregon
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Vermont
  • West Virginia
  • Wisconsin
  • Wyoming

States which require slower traffic to move right only if they are blocking traffic:

  • Florida
  • Georgia
  • Nevada
  • Utah
  • Virginia

States which require drivers moving slower than the speed limit to move right:

  • Alaska
  • Maryland
  • North Carolina
  • Ohio
  • Puerto Rico

States with other rules

  • Michigan allows only passing on the left lane unless there is heavy traffic or more than three lanes on the freeway
  • Pennsylvania and Washington allow use of the left lane to pass, allow traffic to merge, or "when traveling at a speed greater than the traffic flow."
  • First off in the state of New Jersey passing on the right is allowed on a multi-lane roads. The link you provided states: Passing on right prohibited unless vehicles are in "substantially continuous lines."
    – Karlson
    Dec 29 '14 at 13:44

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