This paper presents estimates of the education and training requirements for detailed scientific and engineering occupations. GED and SVP levels are translated into yearly equivalents and the variances in these requirements are derived for the same occupation in different industries and for different occupations in the same industry. The changes in education and training requirements for scientists and engineers in the past decade are estimated and educational attainment in these occupations is compared to occupational requirements. Some implications of the findings presented here are briefly discussed and several serious deficiencies in U.S. occupational data are identified.