The first MAPS ballot in 1993 listed each of the proposed projects in a single-question, all-or-nothing proposition, but that ballot may have been improper, according to numerous attorneys. A state law commonly referred to as the single subject rule forbids cities from asking voters to approve one tax for multiple purposes. Voters must vote on tax-funded projects one project at a time. "Someone probably could have challenged the original MAPS as violating the single subject rule, but no one really did,” said City Attorney Kenny Jordan. The law is why the MAPS 3 ballot will look dramatically different from its predecessors. Oklahoma City Council members kept specific projects off the MAPS 3 ballot. They instead opted to describe the projects as general "capital improvements” in a single question, all-or-nothing ballot that asks voters to let the city to enact a tax to pay for those improvements. The ordinance council members passed in September to set the Dec. 8 vote was bundled with a resolution outlining how to spend the $777 million the sales tax would be expected to generate. Resolutions are nonbinding and can be overturned by a city council vote. Such an approach to a ballot is unusual in Oklahoma, said Andrew Spiropoulos, a law professor at Oklahoma City University and director of the Center for the Study of State Constitutional Law and Government. "It’s not the legal structure that’s unusual — it’s the fact that the city is willing to make such a commitment to such a big series of projects,” he said. "You would never do one or two of these things without the others because they don’t work without each other.” Since the first MAPS, courts have generally ruled that a single subject of a tax can be broader than one single project, Jordan said. The intent of the single subject rule is to avoid combining unrelated projects in a ballot, which can force people to vote for something they may not support in order to get something they do support, Spiropoulos said. The city’s alternative to the all-or-nothing MAPS 3 ballot, Jordan said, was one that included each of the proposed projects as separate propositions requiring separate votes. Mayor Mick Cornett has said council members decided against separate propositions for MAPS 3 projects because city voters are accustomed to the all-or-nothing approach, which was used for MAPS and MAPS for Kids.