If you want to sell your grapes (or wine made from them) this will need to be one of the authorised types for your comune.

The overlapping areas of the different DOC's, in theory, give quite a wide choice.

At Casa della Fontana, for example, we are in the authorised area for barbera, brachetto, chardonnay, cortese, dolcetto, freisa and moscato, but this choice of seven reduces to three if the site is only advantageous for white grapes.

To plant a vineyard, you also have to own the rights to plant that variety. This is a form of quota under the DOC system to prevent over-production.