The document summarizes the contributions of public health administrations in Spain to changing the country's partial smoking ban law. It describes how public debate and media coverage increased support for stronger smoking regulations. Surveys showed higher approval ratings for the law among non-smokers. While the law achieved political consensus, weaknesses in implementation undermined it. This prompted the Ministry of Health to pursue a legislative change in 2010 implementing a total ban in bars and restaurants. Compliance has been very high due to clear regulations, leadership, and engagement with scientists and advocacy groups. Ongoing threats include weakening the social norm and discontinuity in leadership.