Introduction to the RSTS Framework
The European Commission has introduced the Reference Set of Technical Specifications (RSTS) to enhance Monitoring, Reporting, and Verification (MRV) systems for aviation emissions—specifically focusing on non-CO₂ effects. This framework supports the EU ETS and ReFuelEU Aviation Regulations by aligning technical methodologies across stakeholders.
Purpose and Scope
RSTS serves as a harmonized technical foundation to improve data quality on aviation’s climate impact beyond carbon dioxide. It facilitates robust MRV systems by offering specifications for non-CO₂ metrics, such as NOₓ, contrail formation potential, and water vapor. These metrics are vital for understanding aviation’s full climate footprint.
Key Components
The specifications define data input requirements, emission factor methodologies, and data quality assurance protocols. It sets the groundwork for standardising calculation models and tools—promoting consistency across EU member states.
Enabling Innovation and Compliance
With this reference set, regulators and operators can anticipate future reporting obligations under evolving EU climate policies. It also opens doors for more refined climate policy instruments, bridging science and regulation.
The RSTS is a critical step toward evidence-based climate action in aviation, setting the path for transparent and measurable accountability for non-CO₂ emissions.
Download Documents File Here: Reference set of technical specifications (RSTS) for the MRV