Ark. Code Ann. § 27-101-308: Reciprocity

(a) The owner of a motorboat already covered by a number in full force and effect which has been awarded to it pursuant to then-operative federal law or federally approved numbering system of another state shall record the number prior to operating the motorboat on the waters of this state in excess of the ninety-day reciprocity period provided for in § 27-101-302(1) .

(b) The recordation shall be in the manner and pursuant to the procedure required for the award of a number under § 27-101-304 , except that no additional or substitute number shall be issued.