(1) For a sale of each of the following items, the item must be sold at a price determined by reference to volume:
(a) beer;
(b) stout;
(c) ale;
(d) brandy (including armagnac and cognac);
(e) gin;
(f) rum;
(g) vodka;
(h) whisky (including whiskey).
(2) In this regulation:
"sale" means retail sale.