The seal of Don Bosco Technical Institute – Tarlac consists of the gear, flask, laurels, and the anchor. 

The gear is the symbol of the unique Technical Education offered by the institution to the student. 

The flask symbolizes the complete Academic Education provided by the school with special emphasis on science. 

The laurels point to the contribution of the institution in preparing capable citizens who will be responsible for the economic progress of the country. 

The anchor, which is the symbol of Christ, points to the reality that Don Bosco Technical Institute, as a Catholic school, educates students by bringing them closer to Jesus Christ, Lord and Savior. 

Ducere Est Servire. To lead is to serve.

Finally, on its golden jubilee, the school added the motto under the seal: Ducere Est Servire. This is the Latin rendering in English: To lead is to serve. These words capture the vision and mission of the Institute, namely, to build tomorrow’s servant-leaders today. The school strives to form its students into authentic young men who are committed to the service of others while seeking to lead and excel in their own particular calling.