Published report by TRL/ECORYS under a contract from the European Commission to assess the expected impact (cost/benefit) of the proposals for global technical regulations to address fuel-efficiency, emissions, and related performance characteristics of motorcycles and related L-category vehicles.

Status report on the ECORYS-TRL investigation into the prospects for direct referencing of UN Regulations and GTR in the European Union Regulation on environmental and propulsion performance requirements (REPPR).

Updated presentation on the TRL/ECORYS study on environmental and propulsion
performance requirements for motorcycles and other L-category vehicles under the auspices of the European Commission.

TRL/ECORYS Report: "International L-category approval in the area of environmental and propulsion performance requirements-Revision of UN Regulations and Global technical regulations: Mid-term report on the progress of the project

Presentation on the Ecorys/TRL EPPR study project.

Introduction to the research program developed to support the European Commission’s “Revision and Amendments of International L-category Vehicle Approval in the Area of Environmental Performance and Propulsion Requirements” (IEPPR) initiative.