The document summarizes Brazil's legal framework for private participation in infrastructure (PPI) projects. It discusses Brazil's extensive experience with PPI since the 1990s in sectors like steel, petrochemicals, power, telecommunications, highways, railroads, gas, and water supply. It also outlines key aspects of Brazil's legal framework for PPI, including constitutional amendments, sector-specific acts, and contract arrangements like concessions and public-private partnerships. The challenges of expanding PPI programs in Brazil and the main features of the 2004 PPP law aimed to address those challenges are also summarized.