State Questions are measures to change Oklahoma laws or the state constitution that appear on the ballot for all voters. They can be added to the ballot by the Legislature or by an initiative petition from citizens. The number of signatures required on a petition is tied to the total number of votes cast in the last gubernatorial election. Constitutional amendments require signatures equaling at least 15 percent of votes cast, statute changes require 8 percent of this vote, and veto referendums require 5 percent. Most State Questions are voted on during November general elections, but initiative petitions can be placed on the ballot at the time of primary elections or a special election.