Bureaucratic reform, both in the central and regional governments, is a necessity in the effort to comprehend good governance. Bureaucratic reform on the regional government level focuses on creating an efficient, effective, rational and proportional organization that in line with the region needs and capabilities. The organizational assembly on regional government as an institution, conducive organizational task load and structure shifting demands an adjustment in the region government institution through a rational and objective regional organizational apparatus, precise functions and measures of the subtleties and capability owned by each region. This research used descriptive qualitative approach, where an analysis on the organizations of current regional government condition and future needs was conducted. Literature study and Focus Group Discussion (FGD) with policymakers in Kabupaten Subang (Subang Regency) were used to collect data. The research disclosed the need for institutional structuring of regional apparatus organizations in the form of rationalization or pattern restructuring, from "maximal" into "medium" one, through either merger or elimination, both implicated in the reduced number of regional organizational apparatus, especially in Regional office, the escalating regional technical institution as a forefront in development and community service in Kabupaten Subang, developing existing functional office, expanding the decentralization of authority in the district also need to be a consideration to be adjusted, based on the characteristics of diverse geographical and demographic. Therefore, not all sub-districts implement the exact authority and the major factor in determining organizational assembly, but also they prioritize vision, mission and the role of regional government as the orientation. Keywords: Bureaucratic reform, good governance, institutional arrangement, local governance organizations, rationalization and restructuring