Vessels subject to the State Boat Act shall be divided into four classes as follows:
Class 1. Less than sixteen feet in length including all canoes regardless of length;
Class 2. Sixteen feet or over and less than twenty-six feet in length;
Class 3. Twenty-six feet or over and less than forty feet in length; and
Class 4. Forty feet or over.
Neb. Rev. Stat. §§ 37-1213