Was once a source of pride for German wine producers but many now do their best to amend or ignore it. The German Wine Law of 1971 substantially revised the 1930 Wine Law (see german history), particularly in vineyard rationalization, and was precipitated by the demands of the eu wine regime. Compared with the anarchic chaos of Italy’s wine-labelling habits, and the convoluted geography of France’s appellation contrôlée (AOC) system, the German Wine Law of 1971 was a marvel of precision. Each vineyard was delineated and registered (see einzellage), and collective sites, or grosslagen, were also delineated, in a manner that it is hard to deny was designed to deceive consumers. Their produce could be used to make wine at any quality level, depending not on yields but exclusively on the ripeness, or must weight, of the grapes. The least ripe grapes qualify for the bottom rung, once known as Deutscher Tafelwein, now simply as Deutscher Wein, which represents less than 5% of all wine produced in a typical German vintage. All the rest is graded as qualitätswein according to the generous terms of the German Wine Law. German officials make much of the fact that every quality wine is analysed and tasted and has to earn its ap number, but the failure rate is so low as to cast doubt on this highly bureaucratic ‘control’. The lower layer of Germany’s quality wine is made from grapes whose ripeness qualifies for qba status, a ‘quality wine from a specified region’. This is the category which may be chaptalized and under which most German wine is usually sold. Wines made from riper grapes, however, are qualified as Prädikatswein, ‘wine with distinction’: the official prädikat categories being kabinett, spätlese, auslese, beerenauslese, trockenbeerenauslese, and eiswein. The volume produced in each of these categories varies tremendously according to the weather. In 2003, for example, more than half of all German wine produced had a Prädikat, while the cold, wet 1984 vintage yielded less than 6%. This emphasis on must weights was understandable in a country where the perennial challenge was, until the effects of climate change, to ripen grapes fully, but did little to encourage real quality and harmony in Germany’s wines (see germany and german history). Many quality-conscious producers themselves declassify wines from one Prädikat to a lower one, or from Prädikatswein to QbA, because the wine does not reach their own personal evaluation of what constitutes, say, an Auslese. The German Wine Law has been substantially amended since 1971. In 1982 the little-used landwein category was introduced, and at about the same time Eiswein, with its entirely different production technique, was admitted as a Prädikat in its own right alongside Beerenauslese and Trockenbeerenauslese. In 1989, the German parliament agreed to comply with EU regulations to limit yields, but a measure of how much progress was still to be made was that the maximum yield proposed for the noble riesling vine in the supposedly noble wine region mosel was 120 hl/ha (6.8 tons/acre) (more for other grape varieties). During 1993, much more stringent amendments were proposed, for enactment in time for the 1994 vintage, with stricter controls on yields. More significantly, the minimum must weights required for various Prädikats in the Ahr, Mittelrhein, Mosel-Saar-Ruwer, Saale-Unstrut, and Sachsen were raised, and there were moves, albeit limited, to substitute a much clearer labelling system whereby the consumer could tell at a glance whether a wine comes from a single site or Einzellage, or from one of the collective grosslagen. As if German wine categories were not numerous or confusing enough, several new ones have been added to the Wine Law—hochgewächs, classic, and selection—but none has had a significant lasting impact in the marketplace. Two even more recent amendments to German Wine Law that represent signs of their times are permission to irrigate vines and to acidify musts or wine in years of drought and extreme heat. The prestigious vdp growers’ association has long imposed much more stringent requirements on its members than the German Wine Law, and continues to refine its requirements.