ASU spends 15 percent of its food budget on local products and sources oranges, dates, and herbs from an on-campus farm. The dining halls serve some vegetarian-fed meat, hormone- and antibiotic-free chicken and milk, and only purchase seafood according to sustainability guidelines. The university offers discounts for the use of reusable bags and mugs, and dining services went trayless in 2008. ASU recycles standard materials and electronics, and collects unwanted items at move-out.