In the UK, the time spent by a worker travelling between home and work has traditionally not been classed as 'working time'. However, a recent judgment of the European Court of Justice (ECJ) has changed the law, at least in relation to 'peripatetic' workers (i.e. workers who are not assigned to a fixed or habitual place of work) (Federación de Servicios Privados del Sindicato Comisiones Obreras v Tyco Integrated Security SL).