All travellers coming to Scotland from international destinations must test negative for coronavirus.
It has been announced that from next week anyone arriving in the UK will have to take a test up to 72 hours before leaving the country of departure.
Failure to comply will lead to an immediate £500 fine.
The plans have been set out by Transport Secretary Grant Shapps and will include all UK nationals.
Similar measures have been announced by the Scottish Government, while officials were said to be working closely with the devolved administrations in Wales and Northern Ireland on adopting them there.
Mr Shapps said the move was designed to prevent new variants of the disease which have emerged in countries such as South Africa and Denmark.
There will be a limited number of exemptions, including hauliers, children under 11, crews, arrivals from the Common Travel Area with Ireland and for those travelling from countries without the infrastructure available to deliver tests.
The move follows the decision to suspend all direct travel from South Africa following the emergence there of a new strain of coronavirus thought potentially to be even more virulent than the mutant variant which has led cases to surge in the UK.
Mr Shapps said: "We already have significant measures in place to prevent imported cases of Covid-19, but with new strains of the virus developing internationally, we must take further precautions.
"Taken together with the existing mandatory self-isolation period for passengers returning from high-risk countries, pre-departure tests will provide a further line of defence - helping us control the virus as we roll out the vaccine at pace over the coming weeks."
