This work applies Elinor Ostrom's theory of common-pool resource governance to evaluate policy proposals for the implementation of a carbon pricing instrument in Brazil, notably the Presidential Decree 11.075/2022, and Bills 2148/2015 and 412/2022 from the House of Representatives and the Federal Senate, respectively. Through content analysis, the aim is to understand whether these regulatory proposals adhere to the design principles for good management of common-pool resources and whether the analysis from this perspective can provide recommendations for improving the mentioned legislative proposals. Additionally, the work seeks to map the background of the debate on GHG pricing in Brazil, highlighting the national and international context, initiatives, and actors that have driven the discussion on the topic in the country. In this effort, special attention is given to the development of the PMR Project, the main catalyst for this debate in the Brazilian context, with the goal of understanding the origins of the partnership, objectives, engaged players, project outcomes, recommendations made, and their application in the three aforementioned policy proposals. The study concludes that few of Ostrom's design principles are fully observed in the legislative proposals under discussion in Brazil. Furthermore, gaps were identified in the regulations studied that hinder their compliance with the principles, such as the exclusion of sectors of the economy from the regulated carbon market proposed by the three norms, the absence of conflict resolution mechanisms among the regulated sectors, and the lack of the possibility of applying rules through nested organizations at different levels. These gaps provide input for reflection on potential recommendations to improve the proposals under study. Regarding the mapping of the carbon pricing debate in Brazil, it was concluded that the private sector has had - and still has - a strong influence and presence, particularly within the PMR Project. Entities such as CEBDS, the Brazil Climate, Forests, and Agriculture Coalition, and the CNI played a fundamental role as drivers of the discussion. As for the results of the PMR Project itself, it was found that it deemed it desirable for Brazil to adopt an Emissions Trading System (ETS) and provided recommendations on the characteristics that such a system should have. Finally, this work has highlighted that the bill most aligned with the recommendations made by the Project is the Bill 2148/2015, which fully or partially meets all the suggestions raised.