The Colorado Maximum Workday Amendment, also known as Referendum 4, was on the November 8, 1988 election ballot in Colorado as a legislatively-referred constitutional amendment, where it was approved. The measure created the eight-hour work day for certain occupations. It also conformed the state's constitutional age qualifications for voters with those required by the U.S. Constitution. Additionally, the measure repealed several obsolete provisions.
| Colorado Referendum 4 (1988)|
| Yes|| 799,250|| 67.21%|
Election Results via: Colorado State Legislative Council, Ballot History
Text of measure
- See also: Colorado State Constitution, Article V, Article VII, Article VIII and Article X
The language appeared on the ballot as:
|| An amendment to Articles V, VII, VIII, and X of the Constitution of the State of Colorado concerning the maximum eight-hour workday applicable to persons who are employed in certain occupations, conforming the age qualification for electors to that required by the constitution of the United States, and concerning the deletion of obsolete provisions relating to suffrage for women, selection of the seat of government of the state, appropriations for the capitol building, and state support for the 1976 winter olympics.