Two aspects of student charge assessment are examined: (1) assessing students on a full "per-credit-hour-enrolled" basis, and (2) assessing more advanced students at higher rates. Questionnaires were sent to 39 major public universities believed to assess students in either of these ways. The national office of the National Association of State Universities and Land-Grant Colleges, which annually collects data on student charges, provided from its 1974-75 survey information used to select the institutions to be included in this University of Missouri Survey. Responses from 33 institutions are reported, and statistical tables are provided. Eight universities assess undergraduate charges on a per-credit basis and two additional universities assess graduate student charges on a pre-credit basis, while charging undergraduates by a traditional flat-rate scheme. Overall, 22 of the 33 sample universities (or over 25 percent of the survey population) charge graduate students at a higher rate than undergraduates. Four of these 22 make an additional differentiation between lower division (freshman-sophomore) and upper division students. Six additional universities assess graduate student charges at lower rates than undergraduate student charges. Evaluative comments from the universities are included. (LBH)