Accidents in daily life (ADL) are the leading cause of death among children under 15: 236 children (source: CépiDc) died from an ADL in mainland France in 2009. These mortality data do not provide details on the circumstances of the ADL that led to the death. The MAC-15 survey, launched in 2009 in the Île-de-France, Nord-Pas-de-Calais, and Provence-Alpes-Côte d’Azur regions, aimed to understand precisely how these accidents occurred and to identify their risk factors. Its secondary objectives were to test the feasibility and analyze the possibilities for expanding and/or generalizing the surveillance of these deaths. Case reporting was conducted through death certificates, contacts with regional health agencies, and media monitoring. A detailed questionnaire was completed by the certifying physician. In 2009, the MAC-15 study recorded 76 deaths from accidental injuries among children under 15 years of age in the three regions. The victims were more often boys. The most common cause of death was drowning, followed by suffocation, falls, and fires. The survey effectively made it possible to precisely determine the risk factors for accidental injuries and deaths in children and, in most cases, to identify the cause of the fatal accident. This survey demonstrated that the collection of detailed data on all accidental deaths among children under 15 can be implemented. The practical details of this systematic surveillance should be discussed with those who work with victims and with health authorities. (R.A.)