The Single Market Strategy (SMS) adopted in October 20151 proposes actions addressing remaining obstacles to a better functioning internal market in services, including retail services. In particular, for the retail sector, it proposes that “the Commission will set out best practices for facilitating retail establishment and reducing operational restrictions in the Single Market. These will provide guidance for Member State reforms and priority-setting for enforcement policy in the retail sector”. The present study focuses on operational restrictions which, according to the terms of reference... of the study, are defined as regulations impacting on the daily operations of companies. "Such regulations sometimes become a significant burden for businesses, affecting their efficiency, productivity and the quality and price of goods/services offered. Excessive restrictive and complex regulations can also make market entry more burdensome or induce exit.” The focus of this study is on: - national/regional regulations in EU Member States and Norway. It does not include assessing rules harmonised at EU level such as harmonised consumer protection rules; - operational restrictions specifically affecting retail companies. It does not look at regulatory framework conditions of horizontal nature, which apply to all sectors. The retail sector is the economic sector covered by NACE Rev. 2 Division 47.