LONDON - Scientists have warned that weddings and birthdays are the worst coronavirus 'super-spreader events.'
The Financial Times reported that firms will also be told to lay on more parking spaces so that staff do not have to rely on lifts from colleagues.
Millions of companies will have to draw up a Covid-19 "risk assessment" before allowing staff to return to work, the documents suggest.
The guidance also says social distancing will have to be maintained, whether on the shop floor, in shopping queues, or in communal spaces.
A Government spokesman said: "The Business Secretary continues to work with businesses, union leaders and the science and medical community so we can ensure workplaces are safe for those who will go back to work once the measures are relaxed and give people the confidence to return to work."
But business leaders said clarity is needed on issues such as personal protective equipment (PPE) and whether firms can be held liable even if they fulfil their obligations to protect employees from coronavirus.
Director-general of the British Chambers of Commerce Adam Marshall said the issue is one of the "key questions we've asked".
He told BBC Radio 4's Today programme: "They (bosses) will want to know that they're not going to be held liable for horrible things that may unfortunately happen if they've done everything in their power to keep their people safe.(FA)