Medication administration is a critical safety issue in hospitals and the community. Children are especially at risk because of their dependence on adults to safely administer medications. The purpose of this study was to examine non-compliance with state child care medication administration regulations and factors associated with improved compliance. The data included routine, unannounced inspections of child care programs by state licensing specialists collected in two time periods over 10 years. Factors potentially associated with regulatory compliance were included in this secondary analysis. Most child care center medication administration regulations showed decreased non-compliance between the two time periods. However, regulations pertaining to prescriber orders and parent permission revealed a significant increase in non-compliance (58.4%). Factors positively associated with medication administration regulatory compliance included: compliance with annual professional development (p < 0.0001 in both periods), achievement of accreditation (p  =  0.0115 in Time 1), and among centers with children under 3 years of age, compliance with a weekly mandatory visit by a nurse consultant (p  =  0.0004 in Time 2). Though family child care homes had a lower frequency of medication administration non-compliance, only 19% were administering medications in Time 1. High quality, safe, and affordable child-care is essential for all children including those with special health care needs. This study highlights the importance of medication safety practices in child care programs, national child care health and safety standards, federal and state policies regarding medication administration regulations, and the critical role of nurse child care health consultants in promoting safe medication administration in child care programs. (author abstract)