The referendum to overturn HB267, Utah's law restricting public employee unions, has now secured enough signatures in 16 Senate districts to qualify for the ballot. The measure needed signatures from 15 of the state's 29 districts.
The campaign reached its statewide signature threshold on Monday and qualified in 15 districts.
On Tuesday, Senate District 4, represented by Republican Sen. Calvin Musselman, became the 16th district to qualify.
The latest signature counts by district are below.