(a) Definitions. The following words and terms, when
used in this section, shall have the following meanings, unless the
context clearly indicates otherwise.
  (1) Multistate Tax Compact--The agreement between member
states to promote uniform tax treatment and to avoid double taxation
of multistate taxpayers, of which the State of Texas is a member,
as provided for in Tax Code, Chapter 141.
  (2) Sales tax--A tax imposed on the transfer of title
or possession of taxable items for consideration. See Tax Code, §151.005.

  (3) Use tax--This term has the meaning given in §3.346
of this title (relating to Use Tax). Use tax is complementary to the
sales tax and is imposed on the storage, use, or other consumption
of taxable items in this state.