(a) An off-premise sign face may not exceed:
  (1) 672 square feet in area;
  (2) 25 feet in height; and
  (3) 60 feet in length.
(b) For the purposes of subsection (a) of this section, border and trim are included as part of the sign face, and the base, apron, supports, and other structural members are excluded as part of the sign face.
(c) Notwithstanding the area limitation provided by subsection (a)(1) of this section, one or more temporary protrusions may be added to a sign, provided that the sign face, including the protrusions, meets the height and length limitations of subsection (a) of this section and:
  (1) the area of a protrusion is located exclusively inside of the sign face border and trim; or
  (2) the area of the protrusion is outside of the sign face border and trim, as indicated on the sign permit, and does not exceed 10 percent of the permitted area.
(d) A sign may not be erected that has more than two faces fronting a particular direction of travel on the main-traveled way.
(e) A sign erected in a back-to-back or V-type configuration, may have only one face fronting a particular direction of travel.
(f) A sign face that exceeds 454 square feet in area, including cutouts, may not be stacked on or placed side by side with another sign face. Two sign faces may not be stacked or placed side by side if combined they exceed 700 square feet in area.
(g) A sign face may consist of commercial electronic variable message signs (CEVMS), otherwise referred to as rotating slat signs or tri-vision signs, provided that the rotation is completed within one second and the message is stationary for at least 10 seconds following a rotation.
(h) A sign may not have a moveable protrusion in this subchapter.

Source Note: The provisions of this §21.428 adopted to be effective July 1, 2011, 36 TexReg 2418; amended to be effective June 19, 2014, 39 TexReg 4668