Justice Flávio Dino of the Federal Supreme Court (STF) ordered on Wednesday (Sept. 9, 2026) the establishment of a unique identifier (unique ID) for congressional amendments. The executive and legislative branches have until Nov. 30 to submit a joint proposal, including an implementation timeline. The measure was requested by Transparência Brasil, Transparency International – Brazil, and the Open Accounts Association, which are acting as amici curiae in ADPF (Petition for Non-Compliance with a Fundamental Precept) 854.

The implementation of the unique ID was proposed by TB in the report “Similar to the secret budget, ‘leadership amendments’ totaled R$ 1.3 billion in 2025,” published on July 13. Each committee amendment can be broken down into thousands of beneficiaries, distributed among lawmakers through designations. The study found that it is currently not possible to link each designation to a specific commitment, which prevents end-to-end traceability of the funds.

In the petition filed on July 21, the three organizations argued, based on the TB study, that the referral codes currently used by Congress are not preserved in the Executive Branch’s core execution systems, such as Siafi and Transferegov. In response to the petition, the Chamber of Deputies agreed that there is room for improvement in the traceability mechanisms. In the decision, Dino highlights an excerpt from the Senate’s statement that reads: “The preservation of a unique identifier throughout the entire path of the funds, from the allocation to the commitment and payment, depends primarily on the architecture of the execution systems maintained by the Executive Branch—notably SIAFI and Transferegov.br—and not on the congressional phase of forming the allocations.” 

The entities’ statement also addressed the widespread use of committee amendments and so-called “leadership amendments”—allocations registered in the name of party leaders without identifying the legislator who selected the beneficiary. The TB study found that seven congressional caucuses in the Chamber of Deputies allocated R$1.3 billion through this mechanism throughout 2025, with the practice continuing into 2026. 

The organizations called for the suspension of the implementation of allocations attributed to party leaders; for an official letter to be sent to party leaders requesting the identification of the authors by name; for a new audit by the CGU (Office of the Comptroller General) on the fragmentation of amendments, and that a public hearing be held to improve committee amendments. These requests have not yet been addressed by Dino.