Shoppers and people travelling on public transport will be told to wear a face covering again from today.
It comes as tougher guidance has been introduced following concerns over rising cases of Coronavirus and the new Omicron variant.
Strict new rules mean that every shopper is now forced to wear a face covering before entering a supermarket, unless exempt.
And the same rules apply on all public transport as of this morning, Monday, November 30.
READ MORE:Strict new rules coming into place for everyone who shops at ASDA, Aldi, Tesco, Sainsbury's, Lidl, M&S and Morrisons
Health secretary Sajid Javid previously said he hoped the tougher rules on face coverings in England would be "temporary".
It is amid fears the new strain could evade existing vaccines and be more transmissible.
Retailers will now have the power to turn away any customer who refuses to wear a covering from this morning.
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But some stores are worried that their staff face aggression if they ask customers to wear a mask.
Association of Convenience Stores chief executive James Lowman said retailers are "extremely concerned about abuse against their staff from customers who don't want to wear a face covering in a shop."
As of yesterday, November 29, there were 11 confirmed cases of the new Omicron variant.
Health Secretary Sajid Javid warned that cases of the new strain could "rise over the coming days".
Reacting to the news, school children in years 7 and above have been told to wear their masks again in communal spaces.
The booster rollout has also been expanded to all over-18's, with the wait time between second dose and booster jab halved to three weeks.
How are shoppers out in Manchester responding to the new mask enforcement?
Are people using the bus, train or tram services also complying with the rules?
Read our live blog below