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(By Year)

Short TitleYesNoOutcomeType of Change
3Amending revenue and taxation sections of constitution, principally by eliminating the "uniformity clause" and boards of equalization39%60%RejectedConstitutional
Hide details for 19321932
Hide details for InitiativeInitiative
3Reapportionment of General Assembly53%46%AdoptedStatutory
4Giving General Assembly power to provide for a graduated income tax for state purposes, abolishing property taxes for state purposes, and giving any excess revenue to public schools27%72%RejectedConstitutional
5Giving General Assembly power to provide for a limited income tax and a classified personal property tax to be used for public schools32%67%RejectedConstitutional
6Limiting taxation of motor fuels and ad valorem taxation for county roads33%66%RejectedConstitutional
7Repealing statewide prohibition subject to national repeal56%43%AdoptedConstitutional
Hide details for ReferendumReferendum
1Providing for four year terms for certain county officials37%62%RejectedConstitutional
2Increasing the tax on oleomargarine from 10 to 15 cents per pound38%61%RejectedStatutory
Hide details for 19301930
Hide details for InitiativeInitiative
2Providing for the election of a state board of education and for the appointment by the board of a Commissioner of Education to replace state Superintendent of Public Instruction32%67%RejectedConstitutional
Hide details for ReferendumReferendum
1Calling a constitutional convention48%51%RejectedQuestion
Hide details for 19281928
Hide details for InitiativeInitiative
4Providing for a $60 million bond issue for the construction of highways32%67%RejectedConstitutional
6Providing for the election of a state board of education and for the appointment by the board of a Commissioner of Education to replace state Superintendent of Public Instruction34%65%RejectedConstitutional
Hide details for ReferendumReferendum
1Giving General Assembly power to fix salaries of the Governor, Secretary to the Governor, Justices of the Supreme Court, and district court judges53%46%AdoptedConstitutional
2Requiring payment of ad valorem tax on real property a qualification for voting on school bonded indebtedness30%69%RejectedConstitutional
3Amending eminent domain provisions to facilitate better city planning and zoning16%83%RejectedConstitutional
Hide details for 19261926
Hide details for InitiativeInitiative
6Amending law to address the ability of dentists licensed in other states to practice in Colorado without examination23%76%RejectedStatutory
7Creating a public utilities commission and prescribing its powers and duties17%82%RejectedConstitutional
8Concerning the taxation of petroleum products and registration of motor vehicles, and providing that all such taxes and fees be used exclusively for roads35%64%RejectedStatutory
Show details for ReferendumReferendum
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