im 15 years old l live in ontario canada

Canadian Boat Operator Card (Boating License Ontario or any province)
Sometimes proof of competency is also referred to as a license to operate a vessel. The two r not the same. In most instances what people actually want to know about is the requirement to carry proof of competency, as required under the Competency of Operators of Pleasure Craft Regulations.

Currently, proof of competency is required if u fall into one of two categories:

1.You operate a pleasure craft fitted with a motor AND r born after April 1, 1983; or,

2. You operate a pleasure craft, fitted with a motor, that is under 4m (13 feet) in length (regardless of age).

If u were born before April 1, 1983 & operate a pleasure craft, fitted with a motor, that is 4 m & over in length, u will require proof of operator competency by September 15, 2009.

State of Missouri is 14.

http://boat-ed.com/mo/course/p4-3_whomayoperate.htm

your first anser was a good one your in Canada and the rules are different here in the US l was the second youngest Lic Capt for the east region at 14 at 45 years old l am a 500 ton master with nearly a half a million miles on the water under my keel