To allow school districts to increase property taxes by up to 5 mills for 10 years to buy or fix school buses, and to buy computers and software, with the money passing through a "sinking fund." Note: Since new operating expense millages were prohibited by the 1994 Proposal A initiative, and these items may be considered operating expenses, the bill could potentially require a 3/4 majority vote, which is required by the Constitution for revisions of an initiative adopted by popular vote.   Official Text and Analysis.