Nonfaculty salary (instructional support) costs for Montana State University (MSU) are examined with specific reference to the adequacy of the 25 percent nonfaculty salary allowance for other costs. Two concepts are examined: nonfaculty salary expenses within the instruction program (direct instructional support costs) and both direct support costs as well as indirect costs (total instructional support costs). Figures from financial reports for 1968 through 1978 of MSU for both direct and indirect costs are provided as well as figures from four other comparison universities. Direct instructional support costs at MSU vary between 40 and 55 percent of faculty salaries. The total institutional support costs averaged about 125 percent of faculty salaries. It is suggested that there is a need to provide more faculty salaries to meet increased enrollment. It is emphasized that support costs that are not at least equal to the added faculty salaries cannot sustain MSU instruction at its current level of operation. Appended are: financial statistics for MSU; and direct instructional support costs for FY 1976 to 1977 for North Dakota State University, South Dakota State University, New Mexico State University, and University of New Mexico. (SF)