For the purposes of this subchapter, a commercial or industrial area is:
  (1) a zoned commercial or industrial area described by §21.178 of this subchapter (relating to Zoned Commercial or Industrial Area); or
  (2) an unzoned commercial or industrial area described by §21.179 of this subchapter (relating to Unzoned Commercial or Industrial Area).

Source Note: The provisions of this §21.177 adopted to be effective July 1, 2011, 36 TexReg 2418; amended to be effective March 14, 2018, 43 TexReg 1446