Measure the hull from the point of the bow to the transom, excluding bowsprits, outboard motors, and other appendages. Any part of the boat that contributes to the buoyancy of the boat should be included in the boat length - for example, pontoons on inflatable boats or houseboats.
MR1131 Determining your recreational vessel's length (837.0 KB PDF)
If you have a previous registration certificate, use the length marked on the certificate.
