The Utah Governor H.B. 149 into law Thursday. This makes Utah the second state in the union to permit lane sharing.

https://www.rideapart.com/articles/315075/utah-legalizes-lane-splitting/

Lane Splitting is allowed on streets with a speed limit of 45MPH or lower. There must be a minimum of two lanes of traffic. Traffic must be at a dead stop and the rider cannot travel any faster than 10MPH.