The State of Washington does not have any maximum loading and horsepower requirements that are in addition to federal regulations. To review federal regulations, refer to the section
on Capacity Plates included in Chapter 1 of this course.
The following information was approved by NASBLA and is included in Chapter 1 of the Boater101 Course:
Capacity Plates
It is required for all mono-hull boats under 20 feet built on or after November 1, 1972 to have a capacity plate approved by the USCG. In addition, some manufacturers voluntarily install
capacity plates on boats larger than 20 feet. This plate must be visible from the helm of the boat. The capacity plate lists a safe motor size, the maximum number of persons to be
carried onboard and the total weight the boat can carry including persons, motor and gear.
The manufacturer of the vessel should be contacted to determine the capacity if the capacity plate is not present. When operating your boat be sure to adhere to the restrictions listed on the capacity plate. Not only is it dangerous to overpower or overload a small boat since they
can swamp or capsize more easily but it is also illegal. In many states, there are fines and penalties for exceeding capacity recommendations, including carrying more than the
maximum number of people. A basic guideline to determine the capacity for the number of persons on a vessel is:
Length (in feet) X Width (in feet) divided by 15.
Example: 18 (feet) X 5 (feet wide) = 90. 90 divided by 15 = 6 (persons, maximum capacity). Six is the maximum number of people recommended that the boat can carry based
on an average weight of 150 pounds. The amount of total weight for six persons does not include the weight of added gear and motor. The manufacturer of the vessel should be
contacted to determine this additional capacity if a capacity plate is not present. A boat may not be operated with propulsion machinery that is beyond the boats ability to
operate safely. The manufacturer of the vessel should be contacted to determine the horsepower capacity of a vessel.
If your boat is under 20 ft and you do not have a capacity plate I would inquire of C-Dory if they could provide one for your size boat. It is a Federal requirement, but probably not likely enforced unless you are involved in some dispute.