Are studded tires legal in Kentucky?

Kentucky's winter traction rule in statute is its chain law. Kentucky law says a vehicle with chained wheels may not be driven on a highway that is not covered with ice unless the wheel rests on an ice shoe at least six inches wide, and it limits cross chains on rubber tires to three quarters of an inch thick spaced no more than ten inches apart. The statute reads: "(1) No person shall use on a highway not covered with ice, a vehicle with a chained wheel, unless the wheel rests upon an ice shoe at least six (6) inches wide. (2) Where chains are used on rubber-tired vehicles, the cross chains shall be not more than three-fourths (3/4) of an inch in thickness or diameter, and shall be spaced not more than ten (10) inches apart, around the circumference of the tires."

Indiana, October 1 through May 1; Ohio, November 1 through April 15; West Virginia, November 1 through April 15; Virginia, October 15 through April 15; Tennessee, October 1 through April 15; Missouri, November 1 through March 31; Illinois, barred. Each state's page quotes its own statute.

Montana: October 1 through May 31, 243 days. The national page lists every state's window.

The most common opening date in state law is November 1, in California, Iowa, Kansas, Missouri, Nebraska, Ohio, Oklahoma, Oregon, Pennsylvania, Washington and West Virginia. The national page lists every state's dates for 2026-27.

The most common last day in state law is April 30, in Alaska, California, Connecticut, Idaho, Maine, Massachusetts, Nevada, New York and South Dakota. Alaska, California, Idaho, Maine, Oregon, Pennsylvania and Washington can add days by statute; their state pages quote that power.