AZ HB2643

Amends section 42-5061 to add an exemption for sales of coal from the retail classification tax base.

Modifies section 42-5061 subsection B, paragraph 8 to clarify that machinery, tools, equipment and parts used directly in repairing, remodeling or maintaining aircraft, aircraft engines or aircraft component parts are exempt from tax.

Amends section 42-5159 to add a corresponding use tax exemption for coal acquired from an owner or operator of a power plant by a person responsible for refining coal, provided the coal is returned after the refining process is complete.

Makes the enactment of these amendments conditional on the effective date and conditions prescribed by Laws 2018, chapter 263, section 5.