Information for Course Subject Codes by Department can be found here.
Course Numbering Information
Since September 1953, the following numbering system has been in effect:
| Course Numbering |
Numbering Definition |
| 10000-29999 |
* Lower-division courses - normally scheduled for freshmen and sophomores |
| 30000-49999 |
* Upper-division courses - normally scheduled for juniors and seniors |
| 50000-59999 |
Dual-level courses - may be scheduled by juniors, seniors and graduate students for graduate credits |
| 60000-69999 |
Graduate-level courses - Undergraduate student may take a 600-level course upon graduate office approval |
| 80000-89999 |
Professional-level courses - Professional degree courses (i.e. DPHARM - Doctor of Pharmacy; DVM - Doctor of Veterinary Medicine) |
*Classification of Undergraduate Students
**Prior to September 1953, courses designated by letter rather than number (e.g., English A) were non-credit. Courses numbered 1 through 99 were primarily for undergraduate credit. Courses numbered 100 through 199 enrolled advanced undergraduate and some graduate students. Courses numbered 200 through 299 were for graduate students.
001-049 - Precollege and deficiency courses - no longer taught at Purdue University
050-099 - Nondegree courses (e.g., agriculture short courses) - no longer taught at Purdue University
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