Fines of up to £10,000 to be introduced as West Yorkshire enters Tier 3

Deliberately flouting the rules can net you a fine of up to £6,400, while those who organise gatherings of more than 30 people can be fined up to £10,000.

Expect extreme curbs to your social life – social mixing is banned both indoors and in private gardens, while pubs and bars must close unless they can operate as a restaurant.

The rule of six applies in some outdoor settings such as parks, public gardens and sports courts.

Local leaders help the Government to determine whether other venues should be closed, such as gyms or casinos.

Shops and places of worship can remain open, as can schools and colleges, while universities must reflect wider restrictions with the option to move to greater online provision.

Up to 15 guests are allowed at weddings and 30 people can attend funerals, with 15 allowed at wakes, but wedding receptions are not permitted.

People living in Tier 3 areas are advised against overnight stays in other parts of the UK and should avoid travel where possible in and out of the area, unless it is for work, education or caring responsibilities.

Prime Minister Boris Johnson confirmed that, under Tier 2 and 3 rules on household mixing, people can still meet up for work meetings indoors under certain circumstances.