We have developed the first compilation of child care vaccination laws across the US. This compilation is the culmination of an exhaustive examination of multiple components of the laws, such as which vaccines are required, provisions that enable unvaccinated children to temporarily attend childcare until they are fully vaccinated, attendance provisions for unvaccinated students during an outbreak, methods of enforcement of vaccination policy, and child care personnel vaccination requirements. This comprehensive analysis provides a critical and foundational framework to inform policy makers and public health professionals involved in policy planning and implementation and policy research. (author abstract)