Duval-Leroy vineyards comprises under cultivation, which represents a third of the requirements of the house. 40% of its grapes are from Grands Crus and Premiers Crus vineyards. It is present in all villages classified Grand Crus in the Côte des Blancs, such as Oger, Mesnil sur Oger and Avize, and almost all villages classified Grands Crus in the Montagne de Reims, such as Ambonnay, Bouzy and Verzennay. Duval-Leroy benefits from a reliable supply of high quality grapes to elaborate fine wines. The vineyard is managed to respect environmental commitments. The company has five press centers across Champagne. Since the beginning, environmental concerns and sustainable development have been at the forefront of the Duval Leroy grape growing and wine making philosophy. Above and Beyond a reasoned vineyard management, Duval-Leroy has developed a precise program of wine growing taking into consideration environmental and statutory constraints. Measures to combat the run-off of rain water and limit pollution; measures to combat erosion, and measures to preserve natural diversity through the restoration of ecological niches have all been implemented in the past twenty years. The use of weed killers in the vineyard has been cut by over fifty percent since the year 2000. Water consumption has been lowered by 30%. Likewise the use of phytosanitary products intended to protect the vineyard has been limited and work methods have been optimized to limit the use of such products in as much as it is possible. Duval-Leroy has invested in renewable energies to power its new winery. The tasting room, reception areas, as well as the oak barrel room where the wine is set to rest are now lit and heated by solar panels. A green wall, comprising over 2500 plants, brings insulation from both heat and sound for this space, providing the cool and quiet necessary for quality wine making. Finally a waste management policy has been in place for over ten years insuring that, wine by products as well as office generated waste, such as ink, paper, cardboard, etc., are all recycled. As a result of its conscious approach to environmental issues Duval-Leroy became the first house of champagne to obtain the ISO 9002 certification back in 1994. Today it has been awarded the IFS, BRC and ISO 22000 certifications as well. The next goal of the company is to achieve “HVE” standard, which stands for “High Environmental Value”, with a 2015 time target.