(3) "Lot of record" means a lot for which the deed was legally recorded, or which that was created by a plan legally recorded, in the registry of deeds for the county where the lot is located. Contiguous lots of record in the same ownership are considered one lot.

(4) "Message" means a communication conveyed by means of a visual display of text.

(5) "Sign assembly" means the display, border, trim and all supporting apparatus, including posts, columns, pedestals and foundation.

(6) "Time and temperature sign" means a changeable sign that electronically or mechanically displays the time and temperature by the complete substitution or replacement of a display showing the time with a display showing the temperature. b! 2001, c. 268, @3 (new). ?b

B. The display on each side of a changeable sign: may change as rapidly as technologically practicable and the signs are allowed to function to their complete capability as designed.

(1) May be changed no more than once every 20 minutes;

(2) Must change as rapidly as technologically practicable, with no phasing, rolling, scrolling, flashing or blending; and

(3) May consist only of alphabetic or numeric text on a plain background and may not include any graphic, pictorial or photographic images.

C. The display may comprise no more than 50% of the surface area of a changeable sign.

D. No more than one changeable sign with 2 sides is allowed per lot of record.

E. Changeable signs may not be located so that the message is readable from a controlled-access highway or ramp.

F. The highest point of the display of a changeable sign may not exceed a height of 25 feet above either the