The Transport Salaried Staffs’ Union has called for a ‘foolproof set of instructions’ on what travel will and won’t be possible this summer.

The plea for clarity follows comments by prime minister Boris Johnson that there would be ‘some opening up’ of travel this summer but also warned of the risk of an ‘influx of disease’ if travel restrictions are lifted.

The ‘green list’ of quarantine-free countries is expected to be announced later this week by ministers.

TSSA general secretary Manuel Cortes said: “We have been waiting for months for the government to set out a proper strategic plan to support our travel trade in this pandemic and heard nothing.

“Ministers must now provide much needed clarity about what travel will be allowed later this month. After everything they have been through millions of people around our country want to know whether they should be taking holidays abroad this summer – and how they can do so safely.

“So far ministerial mixed messaging has cost far too many jobs within our travel industry. They now need to provide both hope and clarity.

“The only way to do that is to set out a foolproof set of instructions for the public about what will and won’t be possible as we head towards summer.”