This supplement provides the documentation for a country-level data set comprising 1) policy information and 2) information about norms and values regarding partnership, family, and childbearing, with a special focus on assisted reproduction for forty mostly European countries. The data set draws on policy reports from the International Federation of Fertility Societies (IFFS) Surveillance reports (1998–2013) and information collected from large-scale cross-national surveys—the European Values Study (EVS), the World Values Survey (WVS), the Eurobarometer (EB), and the European Social Survey (ESS)—from 1981 onwards. This document provides basic descriptive statistics as well as methodological details such as question wording for the data set.