The request concerns the legal compatibility of the proposed EU-Mercosur partnership agreement and interim trade deal with EU treaties. The key issue is the Commission’s decision to split the originally unified association agreement into two separate instruments. Concerns focus on whether this division aligns with principles of conferred powers and loyal cooperation between EU institutions and member states. Additionally, doubts persist about adherence to EU environmental, health, and consumer protection standards. The Parliament seeks a Court of Justice opinion to clarify competency distribution and democratic legitimacy in the process.