People applying for admission to the Corps had to follow a detailed and, in their own opinion, often difficult recruitment procedure which lasted for many months and which was followed by a period of intensive 11-week on-site training. In Poland such training courses were provided in Toruń, Łódź, Płock and Radom, amongst others. Volunteers were given training relevant to their fields, and also acquired language skills. They learnt about Poland, its history, culture and traditions. One of the topics of the preparing trainigs was the health promotion.