This chapter presents a case study concerning the digital files of the legislative proposals1 produced by the Chamber of Deputies (CD), one of the institutions that comprise the Brazilian Parliament. The study was carried out through a technical cooperation agreement between the CD and the Brazilian National Archives, which acted as coordinator of TEAM Brazil in the InterPARES 3 Project. The case study was conducted by researchers from the Archives and Records Management Coordination (COARQ) at the Center for Documentation and Information (CEDI) in the Chamber of Deputies. The case explains the steps involved for the migration of the traditional processing of the legislative proposal to a digital record model. The objective is to implement and validate the digital file of the presented bill as an original record, through the identification of the necessary requirements for guaranteeing its authenticity and for preserving its longevity.