Housed in a glass-and-concrete building just south of the I-75 interchange with Northside Drive, the Teachers Retirement System of Georgia (TRSGA) is the maintenance body for state-employed educators' end-of-career funds. All of Georgia's K through 12, state university, Board of Regents, and technical college employees (apart from bus drivers and physical maintenance staff, who have systems of their own) contribute via payroll deductions into accounts overseen by this agency. It also assists in the disposition of such accounts for individuals whose status changes with regard to employment in Georgia's state education infrastructure, i.e. people who take teaching or administrative posts in other states or at private institutions, or ones who leave the profession altogether.