What is the difference between a General Sales Tax Measure and a Special Sales Tax Measure?

Special Sales Tax Measures require a 2/3 plus 1 majority vote in order to pass, and legally restricts the funds to a special purpose.

General Sales Tax Measures require a 50% plus 1 majority vote to pass, and may be used for any legal purpose. Measure #F-14 and Measure #D-20 are General Sales Tax Measures.