Welcome to the new Caltech Catalog website. Here, you’ll find all the information you need laid out in a familiar, searchable, accessible, and printable format.
Click through the menu on the left to find information on undergraduate and graduate requirements, courses, and the Institute, its faculty, and areas of research.
The search function, located in the top menu, can help you get to specific information within the current catalog. An archive and PDFs of the current and past catalogs are also available.
Links to download or print a specific section or the entire catalog can be found on the home page of this year's catalog.
While every effort has been made to ensure this catalog is accurate and up to date when published, changes affecting its content may occur during the year. Accordingly, the Institute reserves the right to correct or change its policies, rules, regulations, requirements for graduation, course offerings, and any other contents of this catalog at any time, including, but not limited to, admission, registration, tuition and fees, attendance, curriculum and curriculum delivery, the requirements for graduation or degrees, conduct (including discipline for violations of Caltech’s Code of Conduct and Institute policies), academic standing, and other rules and regulations affecting the student body.
This Catalog is the main source for students on Institute policy and procedure and contains crucial information on various facets of Institute operations; however, it does not contain all rules and requirements applicable to students. Students will be held accountable to comply with the obligations contained herein and are not exempted from rules and requirements which they did not know existed.
It is the responsibility of the student to keep well-informed with respect to the regulations and requirements in this Catalog, the Code of Conduct, and Institute and Student Affairs policies. Current versions of Institute policies can be accessed at hr.caltech.edu/services/policies. Current versions of the Student Affairs policies can be accessed at https://studentaffairs.caltech.edu/policies.
In light of the COVID-19 pandemic and its impact on Caltech, the Institute must maintain the flexibility to adapt programs, policies, and on-campus operations for the 2023–24 academic year to meet the needs of the community. For the most up-to-date information on the Institute's health and safety protocols, visit together.caltech.edu.
Please note that the contents of websites that link to online course entries are not part of the official catalog.
Tatyana McVay, Caltech undergraduate student, spends her JPL internship researching extreme weather.
Cover image by Sergio Solorzano