What are the Group Classifications with the Retirement System?

Group 1 members are officials and general employees including clerical, administrative and technical workers, laborers, mechanics, and all others not otherwise classified.
Group 2 includes certain employees with hazardous occupations, such as ambulance attendants, and mental health hospital attendants.
Group 3 is made up of state police officers.
Group 4 consists of public safety officers, officials, and employees, such as police officers, firefighters, and certain correction officers.