| (a) A sign may not contain or be illuminated by any
flashing, intermittent, or moving lights, including any type of screen
using animated or scrolling displays, except that this subsection
does not apply to a sign that only provides public service information,
such as time, date, temperature, or weather, or similar information.
(b) Except for a relocated sign, any new sign may be
illuminated but only by:
(1) upward lighting of no more than four luminaires
per direction of the sign face or faces of the structure; or
(2) downward lighting of no more than four luminaires
per direction of the sign face or faces of the structure.
(c) Lights that are a part of or illuminate a sign:
(1) must be shielded, directed, and positioned to prevent
beams or rays of light from being directed at any portion of the traveled
ways of a regulated rural road;
(2) may not be of such intensity or brilliance as to
cause vision impairment of a driver of any motor vehicle on a regulated
rural road or otherwise interfere with the driver's operation of a
motor vehicle; and
(3) may not obscure or interfere with the effectiveness
of an official traffic sign, device, or signal.
(d) A temporary protrusion may not be illuminated by
flashing or moving lights or enhanced by reflective material that
creates the illusion of flashing or moving lights.
(e) Reflective paint or reflective disks may be used
on a sign face only if the paint or disks do not:
(1) create the illusion of flashing or moving lights;
or
(2) cause an undue distraction to the traveling public.
(f) A neon light may be used on a sign face only if:
(1) the light does not flash;
(2) the light does not cause an undue distraction to
the traveling public; and
(3) the permit for the sign specifies that the sign
is an illuminated sign.
(g) This subchapter does not prohibit a temporary protrusion
area of the sign face that displays only numerical characters and
that satisfies this subsection and the requirements of §21.428
of this subchapter (relating to Sign Face Size and Positioning). The
display on the temporary protrusion may be a digital or other electronic
display, but if so:
(1) it must consist of a stationary image;
(2) it may not change more frequently than four times
in any 24 hour period; and
(3) the process of any change of display must be completed
within two minutes.
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