New rules requiring all people arriving in the UK to self-isolate for 14 days have come into effect.
Those arriving by plane, ferry or train – including UK nationals – will have to provide an address where they will self-isolate and face fines of up to £1,000 if they do not follow the rules.
Home Secretary Priti Patel said the laws were designed “to prevent a second wave” of coronavirus.
But some industries have warned they will be severely impacted by the rules.
Anyone arriving from the Republic of Ireland, the Channel Islands or the Isle of Man does not have to complete the form or enter quarantine.
There are also exemptions for workers in some industries such as road haulage and medical professionals who are providing essential care.
All other travellers have to fill in a “public health passenger locator” form on arrival. Failure to do so could lead to a penalty of £100, or travellers may be refused entry.
If they are unable to provide an address, the government will arrange accommodation at the traveller’s expense. There will also be checks to see whether the rules are being followed.
The government has faced criticism from the aviation industry and some Tory MPs over the measures, but Ms Patel said the measures were “proportionate” and being implemented “at the right time”.
“The science is clear that if we limit the risk of new cases being brought in from abroad, we can help stop a devastating second wave,” Ms Patel said.
Those arriving in England and Northern Ireland could face a fine of £1,000 if they fail to self-isolate for the full 14 days, while they face a £480 fine in Scotland. The maximum fine for repeat offenders in Scotland is £5,000. The enforcement rules in Wales are not clear.