Final answer:
Voters seeking to change a law about taxes could use reform measures such as an initiative or a referendum. Initiatives allow proposing new laws, while referendums enable approval or rejection of existing legislation.
Step-by-step explanation:
If voters wanted to change a law about taxes, they could use several reform measures depending on where they are. One option is an initiative, which allows citizens to propose new legislation or amend existing laws by collecting signatures to place the issue on the ballot for a public vote. Another option is a referendum, which permits voters to approve or reject a law passed by their state legislature. Worth noting is the example of the Tax Reform Act of 1986, a significant federal overhaul of tax policies, demonstrating how legislation can reform tax systems. Considering the complexity of tax laws, proponents of these measures ensure that their initiatives or referendums are well explained to the electorate, especially since such issues might require substantial research and understanding from voters to make an informed decision.