All restaurants and takeaways in England should be made to display their food hygiene scores by law, the Local Government Association (LGA) has said.
The body that represents councils in England says the move should be made as part of the post Brexit legislation.
Outlets are scored zero to five based on factors such as kitchen cleanliness, cooking methods and food management.
The Food Standards Agency, which runs the scheme, said it was reviewing how food businesses were regulated.
The FSA also oversees the rating system in Wales and Northern Ireland, where displaying the scores is compulsory, while in Scotland they must display similar food hygiene information.
In England, food outlets do not have to display the rating.
The FSA conducted a survey in 2012 that showed 43% of restaurants and other food businesses in England put up a score, which fell to 32% in London.
For businesses with a low rating – between zero and two – the figures fell to 12% across England and 9% in London.
Chris Barber, who advises restaurants on their business, said compulsory display would be “absolutely revolutionary”.
“This is going to have the same impact as when it was first brought in – a massive kick up the backside.
“This is going to be an even bigger kick up the backside.”
The LGA said much existing food safety legislation comes from the European Union and it was important it was not weakened after Brexit.
The government plans to convert EU law into domestic legislation as part of its EU (Withdrawal) Bill and councils want ministers to take that opportunity to strengthen regulation by making all restaurants and takeaways in England display their “scores on the doors” for food hygiene.
Simon Blackburn, chairman of the LGA’s Safer and Stronger Communities Board, said EU food standards must be protected after Brexit.
“Food hygiene standards and compliance levels have risen since the scheme was introduced in Wales,” he said.
“The lack of a hygiene rating sticker in a business means customers are left in the dark on official kitchen cleanliness levels when eating or buying food there.”
The FSA said it was hoping to bring plans to improve regulation forward for England to ministers by 2020.
“Mandatory display is part of the FSA’s plans for a new model of regulation but implementation will require legislation,” a spokesman said.
“We want to bring the food hygiene rating scheme in England in line with Wales and Northern Ireland, where the benefits of more visible ratings have already been felt.”
Recent food hygiene prosecutions include:
Read more: http://www.bbc.co.uk/news/uk-41203519