The International Council on Clean Transportation (ICCT) published the white paper “Future Vehicle Testing and Certification Procedures” to address the growing challenges in vehicle emissions testing and regulatory compliance. As regulatory authorities, manufacturers, and stakeholders adapt to stricter environmental standards, the report explores how future testing frameworks can better reflect real-world driving conditions, reduce discrepancies between laboratory and on-road performance, and ensure higher transparency. With insights into advanced testing methodologies, certification reforms, and international best practices, this publication provides valuable guidance for shaping the next generation of vehicle testing and compliance systems.