Today marks so-called "freedom day" in England when most remaining legal coronavirus restrictions are lifted after months of pandemic-related constraints.

The reopening comes amid deep accusations of recklessness and concern from scientists as coronavirus cases surge, fuelled by the more transmissible Delta variant.

British Prime Minister Boris Johnson will spend the day self-isolating, after close contact with British Health Secretary Sajid Javid who tested positive for Covid-19.

What measures are going?

Social distancing limits are largely over, with no more "rule of six" and "one metre plus" restrictions.

Groups of more than six people from multiple households will be able to hang out indoors and outdoors.

Businesses will reopen, including shuttered nightclubs who can welcome party-goers back to dance floors.

Legal limits on mourners at funerals and those celebrating weddings will also end, as will school bubbles.

What about face masks?

It is complicated. Legally, face coverings will mostly no longer be mandatory in indoor settings.

But government there says it "expects and recommends" masks to be worn by workers and customers in crowded, enclosed spaces.

This could include using public transport or mixing with people you do not normally meet.

The official message is one of "personal responsibility" and "informed choice".

In London, Mayor Sadiq Khan has said they will still be compulsory on the capital's transport network.

Passengers in bus stations operated by combined authorities West and South Yorkshire, on the North East's Metro and Greater Manchester's Metrolink tram services will also be required to wear them under local rules.

Supermarket chains - including Tesco, Asda, Lidl, Morrisons, Sainsbury's and Waitrose - will encourage customers to keep masks on.

Are large events back on?

Yes. From today, people in England can return to concerts, theatre and sports events once again.

The government recommends businesses use "certification" as a basis of entry to venues deemed "high risk".

Is this connected to talk of 'vaccine passports'?

In a sense, except action from businesses will not be mandatory, only recommended.

Organisations are being encouraged to use the NHS Covid Pass - that gives details of someone's vaccination or test result status and featured in large event trials - to help limit the risk of infection.

The government is not being prescriptive about what venues could use the system, so it will be up to venue management or landlords themselves to decide if it will be necessary to guarantee the safety of staff and patrons.

Table service is recommended to continue in bars.

Pub group JD Wetherspoon has said it will relax its face mask and table service rules for customers but will still encourage the use of its app for ordering.

What about Test and Trace?

Positive Covid cases and their contacts identified by NHS Test and Trace will still be legally required to self-isolate.

But amid what some have dubbed a "pingdemic", businesses and unions have warned that Monday could become "chaos day" due to staff shortages triggered by workers having to self-isolate.

The self-isolation requirement will be abolished for contacts of positive cases for under 18s and for double vaccinated adults from 16 August.

Testing will still be available after 19 July, while hotel quarantine will continue to be enforced for those UK residents travelling back from red listed countries.

What about returning to the workplace?

The government is no longer instructing people to work from home, but encouraging a gradual return.

What is the advice for the clinically vulnerable?

Some charities have expressed dismay over people being able to ditch face masks from next week.

People who are clinically extremely vulnerable will be advised by the government to avoid others who are unvaccinated when restrictions are eased.

Those at risk of serious illness from Covid-19 should continue to meet outdoors where possible and ask friends and family to take a lateral flow test before visiting.

What about care homes?

Beyond Monday, friends and relatives visiting care home residents will still need to wear protective equipment and be advised to minimise physical contact.

But there will be not be a limit on the number of "named visitors" a resident can receive and no national limit on how many can visit in a single day.