tax expenditures
(3) The term “tax expenditures” means those revenue losses attributable to provisions of the Federal tax laws which allow a special exclusion, exemption, or deduction from gross income or which provide a special credit, a preferential rate of tax, or a deferral of tax liability; and the term “tax expenditures budget” means an enumeration of such tax expenditures.
Source
2 USC § 622(3)
Scoping language
None identified, default scope is assumed to be the parent (chapter 17A) of this section.