OR An education level typically acquired through the completion of high school and one year as an Assistant Resident Unit Supervisor 11 or Corrections Shift Supervisor 11; or, two years as a Corrections Field Services Assistant E10, Corrections Medical Unit Officer E10, Corrections Resident Representative E10, Corrections Security Representative E10, Corrections Transportation Officer E10, Resident Unit Officer E10, or Special Alternative Incarceration Officer E10; or, three years as a Corrections Medical Officer E9 or Corrections Officer E9. Great Lakes and Great Times: Michigan boasts four Great Lakes, 11,000 inland lakes, 36,000 miles of rivers and streams, 20 million acres of forests, 100 state and national parks and recreation areas, 1,300 miles of bike trails, 6,500 miles of snowmobile trails, the second-most ski areas in the nation, 650 public golf courses, 600 campgrounds, and an international dark-sky park-just for starters.