Approved in Wyoming
Wyoming has approved the AutoSock as an alternative traction device to chains.
Wyoming DOT: http://www.dot.state.wy.us/home/travel/winter/chain_law/full_statute.html
AutoSock falls under section (k) of WS 31-5-956 and Testing has proved that in evaluating the overall traction capability, Autosock exceeds the traction provided by tire chains
“(k) As used in this section, “tire chains” means metal chains which consist of two (2) circular metal loops, one (1) on each side of the tire, connected by not less than nine (9) evenly spaced chains across the tire tread and any other traction devices differing from metal chains in construction, material or design but capable of providing traction equal to or exceeding that of metal chains under similar conditions.”