University of Phoenix attained a peak enrollment of almost 600,000 students in 2010, but its numbers have declined almost 60 percent since 2010. The enrollment drop has been attributed to operational changes amid criticism of high debt loads and low job prospects for university students. Students spend 20 to 24 hours with an instructor during each course, compared with about 40 hours at a traditional university. The university also requires students to collaborate by working on learning team projects, wherein the class will be divided into learning teams of four to five students. The complaint alleges that University of Phoenix has violated the Federal False Claims Act since December 12, 2009 and the California False Claims Act for the preceding ten years by falsely certifying to the U.S. Department of Education and the State of California that University of Phoenix was in compliance with various regulations that require compliance with federal rules regarding the payment of incentive compensation to admissions personnel, in connection with University of Phoenix’s participation in student financial aid programs.