Boat Number Regulations

Wisconsin: The registration number and expiration decals must be displayed as follows:
~ Decals to be placed on each side of the forward half of the vessel.
~ Numbers must be read from left to right.
~ Numbers must be at least 3" high block letters.
~ Numbers must contrast with the color of the vessel.
~ Numbers must be clearly visible and legible.
~ A space at least 2" wide between letters and numbers.
~ Two-toned and camouflage are not legal and should not be used.
​~ Expiration Decals must be affixed three inches behind
​(toward the stern) and in line with the number.

Illinois: The registration number and expiration decals must be displayed as follows:
~ Decals to be placed on each side of the forward half of the vessel.
~ Numbers must be read from left to right.
~ Numbers must be at least 3" high block letters.
~ Numbers must contrast with the color of the vessel.
~ Numbers must be clearly visible and legible.
~ A space at least 2" wide between letters and numbers.
~ Two-toned and camouflage are not legal and should not be used.
​~ Expiration Decals must be affixed in line after the number.