Between July 1978 and June 1980 a program evaluation was undertaken in Pennsylvania in order to measure compliance with state day care licensing regulations. The evaluation involved approximately 1000 licensed/approved child care centers and 50,000 children. Statistical data indicate that by the period April to June 1980 the statewide compliance percentage was well above 96%. Compliance in individual centers ranged from 63% to 100%. Although no significant statewide differences between private and public centers were found, there were slight regional differences. Approximately two-thirds of the centers completed evaluations in both fiscal years. Variation across regions again was found in the pretest to posttest comparisons, but all regional totals increased. The statewide increase in compliance was statistically significant. In the second fiscal year (1979 to 1980) a scoring protocol was implemented. Each questionnaire item had a weight assigned to it in order to measure relative risk to children. By the fourth quarter of the second fiscal year there were only eight (out of 275) items on which fewer than 90% of the programs were in compliance. The eight items were predominately in the child health component and involved screenings and immunizations in particular. Levels of non-compliance are reported for the following immunizations: DPT, Polio, Measles, Rubella, and Mumps. Correlations between unit cost and compliance level as well as between program size and compliance level also are reported. (Author/RH)