By virtue of the Enhanced Basic Education Act of 2013 or the Republic Act 10533, CST-R opened the Senior High School Department in June 2016 and offered the Academic Track covering Science, Technology, Engineering & Mathematics (STEM), Accountancy & Business Management (ABM), and the General Academic Strand (GAS). The pilot SHS Batch was divided into five sections and had 220 students. During the next school year, GAS was phased out and the school's Academic Track was enhanced by offering the Humanities and Social Sciences Strand (HUMSS).
