Missourians circulating petitions to change the state's Constitution or laws have just three weeks to submit their signatures to the secretary of state.
But, even if none of the possible petition proposals makes it to November's ballot, Missouri voters still are assured of having the chance to decide if the Constitution should be changed.
Lawmakers last year passed two proposed amendments - one from each house, after senators had proposed 22 amendments and representatives introduced 38.
This year's session has been asked to consider 83 more proposals, 29 in the Senate and 54 in the House.