Freshman and sophomore courses are numbered 1000 to 2999. They are designed to be taken by students having fewer than two years of university credit. Courses numbered 3000 to 4999 are courses for major programs and are designed to be taken only by students having two or more years of university credit. Courses numbered 5000 to 7999 are designed primarily for graduate students.
Most courses are identified by a four-letter prefix and a four-digit number, the first digit indicating the year level of the instruction.