Courses are numbered as follows: freshmen - 100 level; sophomores - 200 level; juniors - 300 level; seniors - 400 level; graduate students - 500 & 600 levels. Certain 300- and 400- level courses may be taken by graduate students for graduate credit; in such cases, graduate students complete additional research assignments to bring the courses up to graduate level rigor. The letter G in parentheses, (G), appears at the end of those 300- and 400- level undergraduate course descriptions which are approved for graduate work. Only studetns admitted to the Graduate School may enroll in 500 & 600 level courses. No credit is allowed in any curriculum for any course with a catalog number beginning with zero (0) (i.e. English 099, etc.). These courses should be open only to those students who place in them by examination. The numerical listing after each course title gives the following information: the first number represents lab hours per week; the second digit represents the number of 75-minute lecture periods per week; the third digit is the semester credit hours earned for completion of the course. A few courses will have a fourth digit in parentheses. This means the course may be repeated for credit and the fourth digit designates the total amount of semester hour credit that may be earned through repetition of the course. Typically, these courses are research-, performance-, or project-oriented and found in the 300-, 400- levels (undergraduate student) or 500-, 600- levels (graduate student). Some course require the student to complete a Prerequisite course or to secure special permission from faculty prior to enrolling in the course. These prerequisites are listed immediately after the numerical semester credit hour designations. Each student is responsible for complying with prerequisite course work requirements and special instructions. Certain 300- and 400-level courses may be taken for graduate credit. The letter G in parentheses, appears at the end of those course descriptions indicating eligibility for graduate credit. If you look up the Art 473 example above, you will find (G), following the course description indicating eligibility for graduate credit. NOTE: Course offerings for each term are listed in the Quarterly Schedule of Classes, published prior to Early Registration each quarter. Offerings by quarter are subject to change to accommodate needs of students.