B.__The identification number and validation stickers assigned by the commissioner and authorized by this chapter must be displayed on each side of the bow of the boat in the following manner:

(1)__The identification numbers must be painted or permanently attached to the bow and be of a color that is in contrast to the color of the background so as to provide the highest degree of visibility, i.e., dark numbers on a light background or vice versa, and be plainly visible;

(2)__The identification number must be displayed in 3 parts. The prefix, which is the initial letters ME, designating the State of Maine, must be separated by a hyphen or space equal to the width of a letter, other than the letter "I," from the numerals that follow it. The suffix, which consists of the ending letter or letters which appear after the numerals, must be likewise separated from the numerals;

(3)__The identification number must be displayed to read from left to right, of good proportion, with vertical block character capital letters and Arabic numerals, all of which must be not less than 3 inches in height and maintained in a legible condition at all times;

(4)__No number other than the assigned boat number may be displayed on the bow of such a motorboat; and

(5)__The validation sticker, as issued by the division, must be displayed approximately 3 inches behind the last letter of the identification number and on a level with the number on both sides of the bow viz.: ME-123- A.

C.__The owner of a certificate of number terminated or invalidated under subsection 13 shall return it within 10 days of the termination or invalidation.

D.__The owner of a watercraft that has been issued a certificate of number shall notify the commissioner in writing within 10 days of: