(a) On an electronic sign each message must be displayed
for at least eight seconds. A change of message must be accomplished
within two seconds and must occur simultaneously on the entire sign
face.
(b) An electronic sign must:
(1) contain a default mechanism that freezes the sign
in one position if a malfunction occurs; and
(2) automatically adjust the intensity of its display
according to natural ambient light conditions.
(c) The owner of an electronic sign shall coordinate
with local authorities to display, when appropriate, emergency information
important to the traveling public, such as Amber Alerts or alerts
concerning terrorist attacks or natural disasters. Emergency information
messages must remain in the advertising rotation according to the
protocols of the agency that issues the information.
(d) The department will share the contact information
with the appropriate local authority that has jurisdiction over the
location of the electronic sign.
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