The Government has published a list of retailers that are allowed to keep their shopfronts open during Boris Johnson's coronavirus lockdown.
People have been told only to leave their homes if it is absolutely essential. Shops selling key items have been allowed to stay open but people urged only to go to the shops if they have to.
If people continue congregating in groups of more than two or don't follow the rules laid out by Mr Johnson, police have the power to issue fines.
The Government has now published documentation detailing exactly which retailers are allowed to keep physical stores open and which must shut. All retailers are allowed to sell online.
Takeaways can continue to provide delivery but people must not consume food on the site.
The lockdown started at midnight on Monday, March 23, and will be reviewed in three weeks.
Environmental health and trading standards officers will enforce the rules and businesses breaching them face "potentially unlimited fines".
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The stores that must close
Restaurants - except food delivery outlets that can remain open
Cafes - except those in hospitals, care homes or schools
Pubs, bars and nightlife
Hair, beauty and nail salons
Massage parlours
All retail stores (except those listed in the section at the bottom)
Outdoor and indoor markets - except those that offer food
Auction houses
Car showrooms
Hotels, hostels, B&Bs, campsites and boarding houses - unless people live there as a primary residence
Caravan parks - if people use them as a primary home, they can continue to do so
Libraries - unless they host food banks
Places of worship
Cinemas, theatres and concert halls
Museums, galleries
Bingo halls, casinos and betting shops
Spas
Skating rinks
Fitness studios, gyms, swimming pools, leisure centres
Arcades, bowling alleys, play centres
Enclosed spaces in parks such as sports courts, playgrounds, outdoor gyms
The retailers allowed to remain open
Supermarkets and other food shops
Health shops
Pharmacies
Petrol stations
Bicycle shops
Home and hardware stores
Laundrettes and dry cleaners
Garages
Car rentals
Pet shops
Corner shops
Newsagents
Post Offices
Banks
Despite the clear rules, at least one non food retailer is planning to stay open.
Bosses at Sports Direct told employees the stores would remain open as the business was "uniquely well placed to help keep the UK as fit and healthy as possible during this crisis".
In a letter written by Frasers Group finance chief, Chris Wootton, and sent to all staff, he added: "Thus our Sports Direct and Evans Cycles stores will remain open where possible to allow us to do this (in accordance with the Government's current social distancing guidance)."