In 1983, it opened the four-year Secondary Trade Education program and offered the following collegiate courses: Bachelor of Science in Industrial Technology (BSIT) in 1985-1986; Bachelor of Science in Industrial Education (BSIE); and Bachelor of Science in Business Education (BSBE) in 1989–90; Bachelor of Science in Office Administration (BSOA) course in 1999-2000; Bachelor of Science in Computer Science (BSCS) in 1995-96; Bachelor of Science in Hotel and Restaurant Management (BSHRM); and the Bachelor of Science in Education (BSE) in school year 2003–2004. Through the collaborative effort of EARIST administration and the municipal and provincial government, led by former Congressman Renato Dragon, its present three-story main building was initially constructed in March 1990 and ten-phase building projects were completed in 1999.