This report is recently conducted interview research about Key Stage 5 provision among education providers (centres) in England, which complements survey research conducted in the division (Vitello & Williamson, 2017; Williamson & Vitello, 2018a). The aforementioned surveys investigated trends in, and reasoning behind, the provision of AS Levels, Core Maths and the Extended Project Qualification (EPQ) as a result of reforms. The interviews explored centres' reasoning behind Key Stage 5 provision in greater detail, adding depth and context to the survey findings. This report is a summary of how the interview findings illustrate wider trends and perceptions elucidated by the survey research.