Are studded tires legal in Hawaii?

Hawaii law bars studded tires, with narrow exceptions. Hawaii bars wheels fitted with spikes or other road damaging projections, and allows studded snow tires only on the Mauna Kea access road above Hale Pohaku and roads inside the Mauna Kea Science Reserve. Haw. Rev. Stat. § 291-33 reads: "(a) There shall not be operated or moved upon any public road, street, or highway within the State, any vehicle, motor vehicle, or other power vehicle the face of the wheels of which are fitted or equipped with flanges, ribs, clamps, cleats, lugs, chains, spikes or other projections, other than rubber blocks, destructive to the road surfaces."

Hawaii sets no studded tire season. The statute's exceptions: Studded snow tires may be used on the Mauna Kea access road above Hale Pohaku and on other roads within the Mauna Kea Science Reserve leased to the University of Hawaii.

Ordinary detachable tire chains are allowed. The statute reads: "shall not be construed to prevent the use of: (1) Ordinary detachable tire or skid chains"

Hawaii shares no border with another state, so these are the West Coast states most flights and shipped cars arrive from. California, November 1 through April 30; Oregon, November 1 through March 31; Washington, November 1 through March 31. Each state's page quotes its own statute.

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