There are three levels of Designation in the Demonstrated Logistician Program. The first is the Demonstrated Logistician (DL), next is the Demonstrated Senior Logistician (DSL) and the highest level is the Demonstrated Master Logistician (DML). All levels require that the individual continue his/her professional education through college credit or CEU equivalent credit courses, coupled with technical training in his/her field and enabler training in areas associated with the integrated functions of business or government. In addition there are requirements for continued demonstrated professional performance in the practice of logistics.