The credit value of each course in quarter units is indicated for each term by a number in parentheses following the title. Departments may indicate the term in which they expect to offer the course by the use of: "F" (fall), "W" (winter), "S" (spring), "Summer;" three-quarter sequence courses may use the designation "Year" indicating that the sequence begins in the fall. The Schedule of Classes, published several weeks before each term commences, lists the courses that will actually be offered for that term, along with their class hours and locations.

The letters "A," "B," "C," and "D" are used with the course numbers to indicate sequential order; they do not necessarily indicate that an earlier quarter in the sequence is a prerequisite to the later quarters; the prerequisites (if any) of a given course are stated in the description of that course. The letter designation "E-Z" immediately following a course number--for example, HIST 191 (E-Z)--indicates different topics offered under a general title; no specific instance of such a course, for example, HIST 191E, HIST 191F, or HIST 191G, may be repeated for credit unless otherwise indicated in the course description. The letters "E" through "Z" have no sequential implications. The letters "H", "L", or "P" immediately following a course number usually have special designations: "H" for an honors course, "L" for a laboratory course (usually in the sciences), and "P" for a proseminar. A grade is assigned by the instructor at the end of each term, and credit is granted for each term, except as otherwise noted.

Courses are numbered as follows:

  1. Lower-division: 001-099; generally recommended for freshmen and sophomores.
  2. Upper-division: 100-199; normally open only to students who have completed at least one lower-division course in the subject, or six quarters/four semesters of college work. Credit in special studies courses for undergraduates is limited to 5 units per quarter.
  3. Graduate: 200-299; normally open only to graduate students or undergraduates who have completed at least 18 upper-division quarter units basic to the subject matter of the course.

The admission of undergraduates to graduate courses is limited to upper-division students who have an overall scholarship average not lower than "B"; these limits are imposed by the rules of the Graduate Division. However, graduate courses completed before attaining the baccalaureate will not be accepted in partial fulfillment of requirements for the credential or minimum requirements in the 200 series for the master's degree, except for undergraduate students who have received approval for backdating their graduate status to cover the session during which such courses were taken. See the Backdating Units section under Academic Regulations.

  1. Professional courses for teaching credential candidates: 300-399.
  2. Other professional courses: 400-499.


Cross-listed courses share equivalent course content but are taught by two or more departments. Cross-listed courses generally share a course number, but each course is tied to a specific subject area and department. While prerequisites, unit coverage, and grading basis are identical for cross-listed courses, it may be preferable for students in certain degree programs to enroll under only one of the available subject areas. See an academic advisor to determine which subject area is most appropriate before enrolling in a cross-listed course.

To determine which courses are cross-listed, see individual course descriptions in this catalog or see the quarterly Schedule of Classes.


Students may earn credit toward bachelor's and master's degrees at the University of California through University Extension. Acceptance of such credit is based on requirements of a particular college, division or department. Generally, preference is given to credits from courses numbered 001-099 and 100-199, prefixed by XR, XL, XI, XB, etc., indicating that such courses are intended to replicate regular offerings of a campus of the University of California. Also, courses organized by University Extension, numbered 001-099 and 100-199, prefixed only with an X, are acceptable.

Extension credits are treated like transfer units from approved colleges. They apply toward unit requirements for a degree, but they do not count toward the requirements for residence nor do they yield grade points. Resident students in the University must have advance approval from the appropriate dean for enrollment in University of California Extension courses.

Credit earned in University Extension courses is not automatically applicable toward requirements for a master's degree or University-recommended teaching credential and is permitted only in unusual circumstances. Students desiring such credit should consult with their graduate advisors and the Graduate Division before undertaking such courses.

UCR Science Library. Photo by Steve Walag


AHS Art History
ALT Asian Literature
ANTH Anthropology
AST Asian Studies
BCH Biochemistry
BIOL Biology
BLCN Conservation Biology
BLSC Biological Sciences
BMSC Biomedical Sciences
BPSC Botany/Plant Science
BSAD Business Administration
BSWT Basic Writing
CEE Chemical and Environmental Engineering
CHE Chemical Engineering
CHEM Chemistry
CHN Chinese
CLA Classical Studies
CPAC Comparative Ancient Civilizations
CPLT Comparative Literature
CRWT Creative Writing
CS Computer Science
DNCE Dance
ECON Economics
EDUC Education
EE Electrical Engineering
ENGL English
ENGR Engineering
ENSC Environmental Science
ENTM Entomology
ENTX Environmental Toxicology
ENVE Environmental Engineering
ETST Ethnic Studies
EUR European Culture
FREN French
FVC Film and Visual Culture
GEO Geosciences
GER German
GRK Greek
HIST History
HMDV Human Development
HMSS Humanities, Arts, and Social Sciences
HNPG Honors Program
ITAL Italian
JPN Japanese
KOR Korean
LATN Latin
LING Linguistics
LNCR Learning Center
LNST Latin American Studies
LGBS Lesbian, Gay, and Bisexual Studies
LTLG Literatures and Languages
LWSO Law and Society
MATH Mathematics
MCBL Microbiology
ME Mechanical Engineering
MGT Management
MUS Music
NEM Nematology
NRSC Neuroscience
PED Physical Education
PHIL Philosophy
PHYS Physics
PLPA Plant Pathology
PORT Portuguese
POSC Political Science
PSTM Pest Management
PSYC Psychology
RLST Religious Studies
RUSN Russian Studies
SOC Sociology
SPN Spanish
STAT Statistics
SWSC Soil and Water Sciences
THEA Theatre
URST Urban Studies
WMST Women's Studies
WRLT World Literature