News from the C-ID Software Development Team: Version 2.9 was released on 1/29/19 and is now available for use. This upgrade contains numerous accessibility improvements, fixes to the CSU Articulation Officer (AO) queue, bug fixes and general improvements for AO's and Reviewers. It also introduces a new, consolidated course search available on the public site. Details about the release can be found on the new C-ID Software Information and Support Page hosted and maintained by the California Community Colleges Technology Center.

Support is here to help. Please reach out to us at if you experience any issues working the C-ID website or with any questions about the release. 


Welcome to, the website for the Course Identification Numbering System (C-ID).

C-ID is a supranumbering system being developed to ease transfer and articulation in California’s higher education institutions. To learn more about C-ID, please visit our ABOUT US page. To access FAQs for faculty and articulation officers, please click here.

Currently, C-ID has 368 approved descriptors and 33 draft descriptors from over 81 different disciplines. To view C-ID’s finalized Descriptors, or to review Draft Descriptors, please visit the DESCRIPTORS page. Once there, you can select finalized descriptors from a drop-down menu. The Draft Descriptors Review and Comment Area can be accessed by clicking on the View Draft Descriptors link on the Descriptors page.

To access the CSU courses that have been identified by campuses as comparable to C-ID descriptors, use the COURSES tab or You can search for courses by discipline or CSU campus.