tier 3

The prime minister said he might take a "national approach" to lifting the current lockdown.
The hospitality sector faces "further despair" as the toughest restrictions are extended.
Former minister Tobias Ellwood denies he breached any Covid rules by attending the event on the eve of London moving into tier 3.
London and other areas have been put under the strictest lockdown rules. Here's how things look elsewhere ahead of the tier review.
Sadiq Khan says announcement "possible" on Monday, ahead of Commons statement by Matt Hancock.
The capital now has England's highest case rate and MPs are bracing for more restrictions after a call with health minister Helen Whately.
Guests tried to hide when West Midlands Police officers arrived, but began chanting and dancing when the angle grinder came out.
Under the strictest rules pubs can only serve alcohol if it is accompanied by a “substantial meal”, or to take away.
Exclusive: "Up to 20" backbenchers could vote against Boris Johnson's new system for England, says MP Emma Lewell-Buck.
It may help explain how some areas that were in tier 1 before the national lockdown have been escalated to tier 3.