In practice, the term "medical laboratory technician" may apply to persons who are trained to operate equipment and perform tests, usually under the supervision of the certified medical technologist or laboratory scientist. Depending on the state where employment is granted, the job duties between MLSs and MLTs may or may not be similar. For example, in Florida, a MLT may only perform highly complex testing while under the direct supervision of a clinical laboratory technologist, a clinical laboratory supervisor, or a clinical laboratory director. This may make it impractical for a MLT to lawfully work in a Florida blood bank. California has similar restrictions on MLTs. To accommodate California's restrictions, the American Association of Bioanalysts (AAB) developed a separate certification examination for California licensure. However, this exam does not include material covering the areas of immunohematology or microscopy. Although the typical entry-level academic requirement for most MLTs is an associate degree, a 60 credit certificate program exists through military training programs; such as the U.S. Army's 68K military occupational specialty.