The policy will be reviewed within three to five years of it coming into force. I reassure the noble Lord that the intention is that the policy will come into force in October 2022. However, as the noble Lord and I have discussed in the past, I am always concerned about unintended consequences and evidence to see what has worked and what has not. In many ways, I am a fan of the discovery process. We do not have complete knowledge—in fact we have incomplete knowledge—and all we can do is trial and see what works and use the best evidence that we can to assess.
Part of this review of the regulatory framework provisions of the restrictions will consider whether penalties under the Regulatory and Enforcement Sanctions Act 2008 have been implemented effectively and achieve their ambitions. We will continue to keep the policy under review to ensure that it is both impactful and proportionate. I am sure noble Lords will agree that it is not sufficient just to pass a piece of legislation and hope it does its job. In fact, as I think many noble Lords would acknowledge, this in itself is not enough to tackle obesity. It has to be a multi-angled view with many different approaches. Some will work, some will not, but we have to learn from what works and make sure that we are not driving consumers into unintended consequences and leading them to worse health outcomes.
We hope that this strategy that we published in 2020 will be world leading. I think the noble Lord, Lord Brooke, mentioned Sir Keith Mills and his programme. This shows that it is not just this piece of legislation; it is a multichannel approach, if you like, including incentivising people to have healthier lifestyles —monitoring their steps and other exercise functions. Anyone who has looked at successful and unsuccessful diets will recognise the fact that it is not just about reducing what you take in; it is also about burning off those calories. We have to get the right balance. Each individual will have different BMIs and different physiologies and different strategies will work for different individuals.
In terms of the businesses that these regulations will impact, the location and volume restrictions apply only to medium and large businesses in England and around 24% of stores are in scope of the volume price restrictions. Given the size threshold for stores subject to location restrictions, these apply to approximately 16% of stores in England. Some 94% of estimated food retail revenue falls under the volume restrictions, while 84% falls under location restrictions. This means that these restrictions offer considerable potential, if done correctly, while ensuring that small businesses are not disproportionately impacted by the changes. I acknowledge that many noble Lords were concerned about the cost for both large and small businesses.
The original timescale was to be April 2022, but having considered feedback from the industry, we have made the decision to extend the implementation to October 2022. I am well aware that some in the industry are asking for a further extension and, as noble Lords can recognise from the tone of the debate today, some are in favour and some are against and the Government are trying to get the right balance. The Government want to bring in these measures so we can start analysing whether they work. We are also very mindful of the fact that it falls on industry to implement them.
The other issue raised was about smaller stores and what are called symbol groups, which, as noble Lords may understand, are smaller retailers that come under a wider brand. If we excluded symbol groups in their entirety, that would take away some of the health benefits of the policy. Franchises and symbol groups make up about 60% of those in scope of the volume price promotions and 14% of the location restrictions. Approximately only 12% of symbol group stores are over 2,000 square feet, therefore the vast majority of these stores will be exempt from the location restrictions. I hope noble Lords understand the point about the cost falling particularly disproportionately on smaller stores.
7.15 pm
I thank my noble friend Lady Neville-Rolfe for forwarding to me the list of 25 priority questions compiled by the Food and Drink Federation, the British Retail Consortium and the Association of Convenience Stores. It is a priority to finalise the guidance for businesses as soon as possible and make sure that it supports industry as far as possible to get the right balance. Officials are concentrating on completing the exercise and, as part of this, are considering the feedback that the authors of these questions have offered. Our intention is to provide a point of clarification to industry in the final published guidance, which we are working to publish as soon as possible after these parliamentary debates. So, watch this space and do challenge me if it does not happen imminently.