Registering for Courses with Pre-requisites or Co-requisites

As you decide which courses to register for, you will see that some have required prerequisites and/or co-requisites.

You will not be allowed to register for these courses unless you have fulfilled those requirements


A prerequisites is a specific level of preparation that you must have before you can take the course. In order to register for a class with prerequisites, you will need to satisfy its prerequisites before your registration date. You can satisfy prerequisites by successfully completing a course or in some cases taking a placement test.

If you satisfy the prerequisite at LAHC or within the LACCD, it will automatically be cleared and you will be allowed to enroll in the class. But, if you satisfied it elsewhere, then you will need to go submit a request for clearance through the Counseling Office.


A corequisite is a course in which you are required to enroll at the same time that you are enrolled in another course. In the corequisite course, you gain certain skills, concepts, and/or information without which the College considers success in the concurrent course highly unlikely.

In order to register for a course with a corerequisite, make sure you register for both at the same time. Additionally, if one of the courses is already waitlisted or full, you will not be able to register for those courses.

Prerequisite/Co-requisite Challenge

Students who wish to challenge the prerequisite or co-requisite of a course they want to enroll in must file a Prerequisite/Corequisite Challenge Petition form with Admissions & Records. This form is available online and must be submitted in person in the Admissions & Records Office with required documentation.

The form is then reviewed with the documentation and a determination will be made. If the petition is approved, the student will be allowed register for the course. If the form is denied, the student will not be able to enroll in or stay in the course. All students are notified by Postal mail.