As part of the UK government's obesity strategy, the Food (Promotion and Placement) (England) Regulations 2021 were implemented in October 2022 to restrict the prominent placement of products high in fat, sugar, or salt (HFSS) in most retail settings. Local authority (LA) officers have been tasked with enforcement of these regulations. This qualitative study examined the perspectives of LA officers including, trading standards, environmental health, and public health officers to understand enforcement approaches and requirements to optimise business compliance with the regulations. Semi-structured interviews were conducted via MS Teams with a purposive sample of LA officers across England. Data were analysed using inductive thematic analysis. The 22 participants comprised 13 officers from Trading Standards, six from Environmental Health, and three from Public Health teams. The key messages include the following: (i) the regulations are complex and do not align with existing enforcement approaches, (ii) officers' professional background will result in variable enforcement practices, and (iii) compliance assessment is an arduous task. LAs are facing resource and workforce constraints and have to prioritise regulations addressing high health risks (e.g., allergens). Therefore, officers will mostly apply a light touch approach to enforcement, raising awareness and engaging with businesses rather than issuing notices. To develop a consistent enforcement approach across LAs, officers asked for (i) further leadership from central government in the form of funding, training, and tools to determine in-scope businesses and products, (ii) cross-departmental collaboration to raise the regulations' priority at local and regional levels, and (iii) greater consumer demand for healthier retail environments. It is crucial to address both structural challenges such as resource allocation, workforce, and prioritisation issues as well as the inherent complexity of the regulations to strengthen enforcement efforts. Our findings highlight the necessity of supporting enforcement activities at national and regional government levels to avoid potential false conclusions about ineffectiveness of regulations.