The Isabela State University's Curricular Programs are accredited by the following institutions:
- Accrediting Agency of Chartered Colleges and Universities of the Philippines AACCUP (www.aaccupqa.org.ph)
- Commission on Higher Education CHED (www.ched.gov.ph)
Curricullar Programs in two (2) campuses were granted Level III Re-Accredited Status by AACCUP. These programs are: Echague Isabela
- Elementary Teacher Education (Echague and Cabagan Campus)
- Secondary Teacher Education (Echague and Cabagan Campus)
- Graduate Program: Master's (MAT/MS - Chemistry, Mathematics & Biology) (Echague Campus)
- Graduate Program: Master's (MAT/MAEd - Home Technology & Social Science) (Echague Campus)
- Graduate Program: Master's (MAT/MAEd -English & Filipino) (Echague Campus)
- Agricultural Engineering (Echague Campus)
- Agriculture (Echague Campus)
- Agribusiness (Echague Campus)
