The main duty of this department is to provide technical assistance to all the projects and undertake research and study of current trends in technology and information. They carry out the design, investigation, queries, research, technical studies, submittals, certificates, and drawings. The ETD also carries the duties of monitoring contracts and its respective Correspondence. Pre-bidding, bidding, and post-bidding activities are undertaken by this department including the preparations of invoices, attachment and quantity surveys.