In 1939 Tennessee authorized the formation of Soil Conservation Districts (Districts) when the legislators passed the Soil Conservation District Act into Law. By 1945 Tennessee landowners had successfully petitioned the state for the charter of nearly 30 Districts. Discussions among these early Districts led to the formation of an association for Districts. In August of 1945 the Tennessee Association of Conservation Districts (TACD), then called the Tennessee Association of Soil Conservation Districts, held its first official meeting. W.F. Fletcher of the Haywood Soil Conservation District served as TACD's first President. Over the next 14 years Districts continued to organize in Tennessee until the last District was chartered in 1959.

TACD was created by Districts for Districts and is governed by Tennessee's 95 Districts and the 475 men and women who serve on the District boards. TACD is officially registered as a not-for-profit corporation through the Tennessee Secretary of State. The association is divided into three divisions; East, Middle, and West Tennessee. Each division is divided into three areas. TACD's Articles of Association provide for Officers and Directors consisting of a president, a Vice President, a Secretary, a Treasurer, and a Council Member to the National Association of Conservation Districts (NACD). Each Division has a Vice President and each Area has a Director and two Vice-Directors. TACD has an Executive Director hired as its consultant.