The document discusses regional aviation programs and airport infrastructure subsidies in Brazil. It provides an overview of air transport developments in Brazil from the 1920s to present day. Key programs discussed include the Logistics Investment Program: Airports (PIL) and the Regional Aviation Development Program (PDAR). The PIL aims to improve airport infrastructure, increase population access to air transport, and rebuild the regional aviation network through airport investments and concessions. It selected 270 regional airports for infrastructure investments totaling $2.92 billion. However, many of these airports currently lack scheduled air service.