"Category" would be for example: Dry Stout, Oatmeal Stout, Sweet Stout - Australian Lager, Australian Premium Lager, Pale Continental Lager, Munich Helles...... etc.
Unless it's changed over the last couple of years, if you win a place, say in the stouts above, with a Dry Stout you can if you wish enter a Sweet Stout in the Nationals instead.
Unless it's changed over the last couple of years, if you win a place, say in the stouts above, with a Dry Stout you can if you wish enter a Sweet Stout in the Nationals instead.