WAFL is an international scientific conference on the assessment of animal welfare at farm or group level. Issues addressed during a WAFL conference can be:welfare criteria;welfare indicators and methods to analyse them;automation of measures;ways to deal with a large amount of data from various welfare measures in order to assess the overall welfare of animals; rationales underlying epidemiological studies and risk models;consultation processes;implementation in practice;communication of animal welfare assessment results; andother topics related to animal welfare assessment in practice.