This article discusses a unique organization in the regulatory world, the Brazilian Association of Regulatory Agencies ( ABAR), which brings together federal, state, and municipal regulatory agencies across different policy sectors. The paper argues that as a regulatory policy network, ABAR has been crucial to the professional socialization, capacity building, and institutionalization of regulators in Brazil. Moreover, it has promoted their identity as professionals and differentiated them from politicians, regulatees, and societal actors. Thus, while ABAR raises the shield of expertise to secure independence from political and social interference, it has itself become a relevant actor in the country's regulatory political dynamics, contributing as such to the strengthening of the Brazilian regulatory state. [ABSTRACT FROM AUTHOR]