War II, the school was forced to close for three years. Nevertheless, in September 1945, the school was reopened with a handful of teachers, holding classes in the bomb-shattered building. In July 1948, regular publication of The Cagayan Students' Chronicle which is the school organ of the Cagayan National High School up to this day, was resumed. In 1967 to 1972, the school was one of the ten pilot high schools in the country in teaching secondary English as a second language. As such, it was a regional center for the five-year English program. The school year 1974–1975 started the implementation of the Revised Secondary Curriculum Program 1973 which is the present curriculum. Cagayan National High School witnessed a significant milestone in its history following its nationalization by virtue of Presidential Decree 1050 on July 1, 1976. Its principal then, Conrado I. Bacuyag, was the principal author of its nationalization. To this day, the Cagayan National High School is ever-glowing with her remarkable feat and records in competitions. In January 2022, the senior high school department of the school was separated to become the Cagayan National High School- Senior High, a separate school. Curricula Junior high school There are three curricula offered: the Restructured Basic Education Curriculum (RBEC) is for the majority of the students. The Engineering and Science Education Program-Special Science Classes (SSC-ESEP) is for the top 150 students in their batch, whose sections are named Gold, Silver, Nickel and Copper (other grade levels have added Antimony as one of these). The other curricula are for those in the Special Program in the Arts (SPA), which centers on nurturing talents of the students and the Special Program in Sports (SPS), which hones the students' talents through sports. SPA classes specialize in music, writing, drafting, dancing. Science, Technology, Engineering and Mathematics Education Program, formerly known as the Engineering and Science Education Program (ESEP) Curriculum Enhanced Basic Education Curriculum (EBEC), formerly known as the Restructured Basic Education Curriculum (RBEC) Special Program in the Arts (SPA) Special Program in Sports (SPS) Special Program in Foreign Language (SPFL) Senior High School Cagayan National High School pioneered its Senior High School program in the school year 2016–2017 with a handful of offerings — two strands in the Academic Track (STEM and GAS), the Technical Vocational Livelihood (TVL) Track and the Sports Track. With the introduction of a new track, Arts and Design Track, and