Elsewhere, six of England's regional mayors, including West Yorkshire's Tracy Brabin and South Yorkshire's Dan Jarvis, are calling on the government to keep face coverings mandatory on public transport from Monday.The mayors have mandated face coverings in the areas they have control of. In Greater Manchester that includes Metrolink. In West and South Yorkshire, it is limited to bus stations and transport interchanges. In Scoland and Wales, face masks will remain compulsory in most public indoor settings in the next phase of easing coronavirus restrictions - which is on July 19 for Scotland and August 7 for Wales. ITV Science Editor Tom Clarke says masks are one of the few defences against the virus we have left