Arizona Proposition 100 (2010)

Proposition 100 was a ballot measure to temporarily raise the Arizona state sales tax by 1 cent per dollar, with the proceeds going to education, public safety, and health and human services. The referendum was passed by voters in a special election on May 18, 2010. The measure amended Article IX of the Arizona State Constitution, raising the state sales tax from 5.6% to 6.6%, and included a clause which would automatically repeal the increase on May 31, 2013. Two-thirds of the revenue was designated for primary and secondary education, while one-third of the revenue was designated for both health and human services and public safety.

The resolution to put Proposition 100 on the ballot was passed on February 4, 2010 as Senate Concurrent Resolution 1001 in the sixth special session of the 49th Arizona Legislature. The bill to hold the special election was sponsored by seven senators, four Republicans and three Democrats. The final vote was 20 to 8, with two members vacant. Arizona Governor Jan Brewer supported the bill.

The potential effects of Proposition 100 were disputed at the time. The Arizona Education Network, a nonpartisan education advocacy organization, estimated that 15%-20% of primary and secondary classroom teachers were likely to be eliminated if it did not pass. Economic analysis indicated passage would help save 13,000 jobs in both private and public sectors of the economy. Arizona's three state universities, Arizona State University, The University of Arizona, and Northern Arizona University, were estimated to face an additional budget cut of $107 million if Proposition 100 failed, along with a $15 million cut to community colleges.

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