In the Germany, Austria, and Switzerland Study Guide (6/12/2019) it states that Qualitätswein was formerly "Qualitätswein bestimmter Anbaugebiete." When were the terms “bestimmter Anbaugebiete” eliminated?
From the Expanded Guide on Germany: "Under the EU-wide CMO reforms on wine passed in the late 2000s, Germany’s 13 Anbaugebiete (after the country's reunification, 2 were added to the original 11) formally became PDOs. In German, a protected designation of origin is known, cumbersomely, as a geschützte Ursprungsbezeichnung (gU). QbA and QmP became traditional terms under the eyes of the law, and Germany took the opportunity to (mercifully) shorten the category names to Qualitätswein and Prädikatswein. Tafelwein evolved into Wein.
Adam... thank you very much! Have a great day!