On March 3, the Utah legislature sent SB 275 to the Governor. It makes it easier for people who signed an initiative or referendum to remove their signatures. The bill goes into effect the moment the Governor signs it into law.
An initiative petition is currently circulating in Utah, to toughen ethics standards for state legislators. See this op-ed by John W. Milliken in the Salt Lake Tribune. Milliken identifies the motivation for SB 275 as a desire to stop that particular initiative. There are court precedents that hold that it violates due process to make ballot access more difficult in the middle of any particular petition drive.