From 1955, revised every 10 years (most recent 2012), 4 tiers: Premier grand cru classé A: Chateaux Ausone, Cheval Blanc, Pavie, Angélus premier grand cru classé B Grand cru classé Grand cru – basic wine, misleading wording Chateaux are judged on: terroir method of production reputation commercial considerations blind tasting of at least 10 vintages