Versions of Utah Code 41-6a-1636. Tires which are prohibited -- Regulatory powers of state transportation department -- Winter use of studs -- Special permits -- Tread depth on LawServer 2023 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2022 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2020 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2018 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2016 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2015 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2014 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2013 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth 2010 Utah Code 41-6a-1636. Tires which are prohibited — Regulatory powers of state transportation department — Winter use of studs — Special permits — Tread depth