November 1, 2017 "[I]t is important to understand the nuanced distinctions of social norms and what makes people adhere to them, in order to truly innovate the way we approach behavior change." Social norms have gained increasing attention in international development and, specifically, in the field of health behaviour change. This paper reviews available literature on social norm change theory and programming, with a focus on public health, in an effort to decipher what constitutes a norms-shifting intervention (NSIs). It supports the work of the Scale-Up Learning Community within the Learning Collaborative to Advance Normative Change. According to the review, the 10 key attributes of an NSI - which are all interconnected - are: