This report presents the data collected as part of the 1990 New Entrants Survey on the demographic, education, and employment characteristics of recent college graduates in science and engineering fields. A major objective of the survey was to develop national estimates and characteristics of the total population of scientists and engineers in the United States. The report is presented in three sections. The first section discusses the survey design, response rates of the sample (25,686) of science and engineering graduates in 1988 and 1989, definitions of key variables in the survey, differences of the survey results with other data sources, and sampling errors. The second section, which makes up the majority of the report, presents detailed statistical tables reporting graduate characteristics by field of degree, sex, graduate school status, employment status, racial/ethnic group, type of employer, primary work activity, and annual salaries. The tables are grouped into the following science and engineering categories: (1) 1988 bachelor's-degree recipients; (2) 1988 master's-degree recipients; (3) 1989 bachelor's-degree recipients; (4) 1989 master's-degree recipients; (5) median annual salaries of 1988 and 1989 bachelor's-degree recipients; (6) median annual salaries of 1988 and 1989 master's-degree recipients; and (7) selected employment characteristics of 1988 and 1989 bachelor's- and master's-degree recipients. The third section reproduces a copy of the questionnaire used in the survey.