For determining "class", the length of a boat is from end to end over the deck excluding sheer. It means a straight line measurement of the overall length from the foremost part of the vessel measuring parallel to the centerline. Bowsprits, bumpkins, rudders, outboard motors and brackets, and similar fittings or attachments are not to be included in the measurement. Length shall be stated in feet and inches or meters.
2 CCR 405-2-206