Carriers will also be legally obliged to set out on their website that the form must be completed before travelling.
Stay at home rules are still in place until the end of the month, which means it is illegal to travel abroad without a permitted reason, such as for education or work.
The police will also undertake spot checks at UK ports across the country to ensure passengers are complying with domestic lockdown rules.
Passengers who are identified by police as attempting to travel internationally for reasons that are not currently permitted will be asked to return home and risk receiving a fixed penalty notice for breaking stay-at-home rules.
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