Course Identification Numbering System (C-ID)

For some courses, after the course title, there is an additional C-ID designation. For example, PHYS 250 PHYSICS WITH CALCULUS I (C-ID PHYS 205). This designation is a statewide numbering system independent from the course numbers assigned by Cañada College. A C-ID number next to a course signals that participating California colleges and universities have determined that these courses are comparable in content and scope to courses offered on their own campuses, regardless of their unique titles or local course number. Thus, if a schedule of classes or catalog lists a course bearing a C-ID number, for example COMM 110, students at that college can be assured that it will be accepted in lieu of a course bearing the same C-ID COMM 110 designation at another community college. In other words, the C-ID designation can be used to identify comparable courses at different community colleges and in the CSU system.

Students should consult the ASSIST database at for specific information on C-ID course designations and to confirm how each college’s course will be accepted at a particular four-year college or university for transfer credit. Counselors can always help students interpret or explain this information.