In the fall of 1991, Notre Dame's Master of Education program started. The college saw its first M.Ed. graduates in 1994. Although men had been allowed to enroll in certain programs, such as NDC's Law Enforcement Education A.A. degree program in 1969 and later WECO and master's programs, in 2001 the college officially became coeducational with its first full-time male enrollment. The college graduated its first co-ed class on May 7, 2005. Since the college became coeducational it has seen enrollment double from nearly 1,000 in 2001 to over 2,000 in 2010. In 2008, NDC began construction on two additional residence halls, North and South halls. The structures opened in 2009 at a cost of $15 million.