This project examined the feasibility and benefits of including some welfare outcome measures within the UK pig farm assurance schemes with a view to potential industry implementation. The investigations included both animal welfare science and an evaluation of socio-political factors. Consultations with stakeholders influenced the potential welfare measures, including a novel pig keeping score'. Five 'core' measures were identified: tail lesions, body lesions, lameness, pigs requiring hospitalisation and oral behaviour. During this process differences between stakeholders in the understanding of the concept animal welfare emerged.