Convergence and coordination in the C40 emerged as a function of the authority of Michael Bloomberg and New York City to establish and project onto the governance field a particular set of governance norms and a sense of collective identity. This chapter demonstrates the extent to which convergence around those norms and identity not only continued, but also rather accelerated, following the shift in C40 leadership that took place in early 2014. The analytic focus thus shifts from an emphasis on agency – who claims authority, how actors attempt to shape the substance of the governance field – to the structuring effects that governance fields exert once those ideational and identity contours are entrenched. The chapter documents the extent to which the C40 governance field, from 2014-2018, consolidated around governance norms of autonomous agency and global accountability. The theory of global urban governance fields is deployed to illuminate the manner in which these norms constitute both the parameters within which member cities have come to understand and enact their role as global climate governors, and the mechanism of recognition through which these norms are replicated and reinforced across the C40.