Versions of Utah Code 4-33-106. Octane rating determination and posting on LawServer 2023 Utah Code 4-33-106. Octane rating determination and posting 2022 Utah Code 4-33-106. Octane rating determination and posting 2020 Utah Code 4-33-106. Octane rating determination and posting 2018 Utah Code 4-33-106. Octane rating determination and posting