This position paper was commissioned by PETRA to look at the Internal Market Act 2020 and the implications for public health measures. The Act limits the powers of devolved administrations to act independently, including on public health issues. The potential use of Common Frameworks as an alternative means of enabling public health measures is considered and the opportunity to learn lessons from successes achieved in tobacco control policies is highlighted. The author concludes that civil society pressure is likely to be required in order to ensure that action is taken on the wider determinants of health.