As counselor by training and an adjunct professor of Counselor Education, I help to prepare future counselors-in-training. I recognize of how important a supervisor is a counselor's development. 

Requirements to be an eligible supervisor differ by discipline. There are also different regulatory boards. Our licenses are unique because we have distinct competencies that support our approach to practice and professional identity.

As Chi Sigma Iota shared in another comment, "for the same reason, neither the Board of Psychology nor the Board of Social Work permits LPCs to supervise future psychologists or social workers. Likewise, we believe that future LPCs should be supervised by experienced members of their own profession."