Dining services purchases seasonally from ten local producers, and citrus, herbs, dates, and other produce are sourced from an on-campus garden. Only recyclable containers are used, and convenience stores offer a twenty-five-cent discount with reusable bags. In addition to aluminum cans, plastic, and paper, batteries, toner and ink cartridges, cell phones, and sneakers are recycled. The university has also had a contract since 1995 to demanufacture electronics. The recycling program is being expanded in order to increase the current diversion rate of 15 percent to 50 percent.