Declaring a Major

CSULB students must meet precise major-specific criteria in order to formally declare a major. This requires that students begin as pre-majors and then declare the major if and when they complete the major-specific criteria. All students must have a declared major by the time they reach 60 earned units.

This applies equally to students who are:

  • Undeclared
  • Admitted into a "pre-major" and are requesting to declare the major
  • Requesting to change major
  • Requesting to add a major

Please see the major-specific requirements from Enrollment Services to declare a major within the College of Natural Sciences and Mathematics.

If you have additional questions regarding the major-specific requirements or would like to meet with an advisor to work with you on a timeline, please schedule an appointment.

Pre-Major Declaration Guidelines

First-time freshmen admitted as undeclared or admitted to a different college will be allowed to switch their pre-major to the College of Natural Sciences and Mathematics based on the criteria outlined in the Pre-Major Declaration Guidelines (PDF).


In-person appointments are canceled until further notice.

Students can meet with advisors for online appointments using Zoom. Please schedule your appointment through Student Success Collaborative in Single Sign-On and select "Online-Academic Advising." Your advisor will send a separate email with the Zoom link for the appointment.

Please note that for quick questions, email your advisor directly. For questions regarding registration, please review our Registration FAQs before emailing your advisor.

Schedule Appointment
CSULB Student Success Collaborative

Appointment Guide

Drop-In Hours

Drop-in Hours have been canceled until further notice. Please email your advisor or for quick questions.

Contact CNSM Advising

Please include your student ID number in all email correspondence.