Sales tax holiday.

Defines "clothing" and "backpack", and incorporates the definition of "school supply" as set forth in the Streamlined Sales and Use Tax Agreement for purposes of the sales and use tax exemption period. Provides a sales and use tax exemption period beginning on August 1 through August 7 of each year for the following items: (1) Certain articles of clothing, if the sales price of the article of clothing does not exceed $100. (2) A backpack or school supply, if the backpack or school supply is purchased for use by a student in a public or private elementary or secondary school, and if the sales price of the backpack or school supply does not exceed $100. Provides that a retailer is not required to obtain an exemption certificate stating that backpacks or school supplies are purchased for use by students in a public or private elementary or secondary school unless they are being purchased in a quantity that indicates otherwise.