State spending cap. Provides a control on state expenditures based on the change in gross Indiana nonfarm personal income as reported by the United States Department of Commerce, Bureau of Economic Analysis. Requires the budget agency to determine and publish the Indiana nonfarm personal income growth quotient (the IPI growth quotient) in the Indiana Register. Provides for emergency expenditures. Provides for mandatory reductions in expenditures. Requires that the digest of a budget bill or a conference committee report on a budget bill must contain certain information concerning state appropriations and expenditures. Repeals the law concerning business cycle state spending controls.