
Sail Numbers
Sail numbers are issued either by the Builder, Class Association or National Authority (MNA). In the case of most dinghies, smaller keelboats and one-design vessels it is the Builder or Class Association that is the number issuing authority. In the case of one-off boats, small production run, or non–one design vessels it is the National Authority that allocates Sail Numbers. Sometimes, where requested to by a class association, the MNA can take on that role.