UT HB0600

Creates a new referendum process allowing Utah voters to approve or reject Utah Supreme Court opinions that declare state laws unconstitutional

Requires referendum petitions to obtain signatures from 8% of active voters statewide and 8% from at least 15 Senate districts, with applications filed within 5 calendar days of the Supreme Court opinion being issued

Automatically stays a Supreme Court opinion from taking effect once the lieutenant governor determines sufficient signatures have been certified, with the stay remaining until voter approval or petition failure

Establishes a 106-day timeline for the lieutenant governor to declare petitions sufficient or insufficient, after which qualified referendums proceed to the next general election or a special election called by the governor

Makes violations of referendum petition requirements (fraudulent signatures, paying for signatures, etc.) a class A misdemeanor, and sets an effective date of May 6, 2026