This article examines how participants in literacy events mediate the validation and legitimacy of official documents. Through articulating the perspectives of literacy as a social practice, paperwork studies, and the analysis of administrative burdens, we argue that the value of official documents is unstable and can fluctuate between valid and invalid each time applicants and frontline workers redefine the context of use. Through ethnographic observation, we gathered data on the historical production of birth certificates and the social construction of their meaning. We documented a participant's unsuccessful efforts to renew her voter's ID card over several years and in different government offices. We show how government employees rejected or accepted the same official birth certificate she presented, depending on how she framed her paperwork. Its meaning relied on the articulation of the negotiated administrative purpose, the definition of the context of use, and the document's materiality.