(a) "Incremental baseball tax revenues" means:

(A) The Oregon personal income tax revenues that are generated from the Oregon personal income tax liabilities shown on the income tax returns filed by the members of a professional athletic team engaged in Major League Baseball, including revenues that are generated from the tax liabilities of spouses of members of a professional athletic team engaged in Major League Baseball if the tax liabilities are reported on a joint return; or

(B) If Oregon personal income tax rates are reduced after the dates of the grant agreements described in ORS 184.404 and the grant agreements provide that payments will be based on rates in effect when the grant agreements are executed, the Oregon personal income tax liabilities, as described in subparagraph (A) of this paragraph, that would have been due if the liabilities were calculated using personal income tax rates in effect on the date of execution of the grant agreements.

(b) "Major league stadium" means a baseball stadium located in the City of Portland that is designed for use by a Major League Baseball team and that has an estimated cost of $300 million or more.

(c) "Member of a professional athletic team" means an athlete or other individual rendering service to a professional athletic team if the compensation of the athlete or other individual exceeds $50,000 in a tax year.

(d) "Tax liabilities" means the tax determined under ORS chapter 316 for the tax year less the credits allowed for purposes of ORS chapter 316 for the tax year.

(2) The Department of Revenue may adopt administrative rules that the department determines are necessary to:

(a) Further define the terms defined in this section in a manner consistent with this section;

(b) Implement the duties of the department under ORS 184.400 to 184.408; and

(c) Carry out the purposes of ORS 184.400 to 184.408. [2003 c.808 §1]