The new legislation which was introduced by the UK parliament in 2009 but becomes enforceable in law 23rd November also categorises the whisky into the following definitions:

Blended Scotch Whisky: a blend of one or more Single Malt Scotch Whiskies with one or more Single Grain Scotch Whiskies.

Blended Malt Scotch Whisky: a blend of two or more Single Malt Scotch Whiskies that have been distilled at more than one distillery. (previously known as Vatted Malt or Pure Malt Scotch Whisky)

Blended Grain Scotch Whisky: a blend of two or more Single Grain Scotch Whiskies that have been distilled at more than one distillery. (previously known as Vatted Grain Scotch Whisky)

Single Malt Scotch Whisky: a Scotch Whisky that has been distilled in pot stills in one or more batches at a single distillery from water and malted barley, without the addition of any other cereals.

Single Grain Scotch Whisky: a Scotch Whisky that has been distilled at a single distillery except Single Malt Scotch Whisky or a Blended Scotch Whisky.

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