Toyota recently presented an innovative swappable hydrogen fuel cell battery system for future zero-emission vehicles at the Japan Mobility Show Bizweek 2024. The system involves portable hydrogen cartridges that can be easily exchanged between vehicles, resembling large AA batteries in appearance. These cartridges, designed for convenient swapping when power runs low, have been significantly downsized by Toyota to be more manageable and portable. The company envisions these cartridges not only powering vehicles but also serving as a potential energy source for homes. Toyota aims to collaborate with various companies and startups to leverage this technology and contribute to the development of a hydrogen society. On the other hand, in the United States, autonomous vehicle expert Henry Liu is advocating for the establishment of a national driver's test specifically for self-driving vehicles. This proposed regulation aims to set minimum standards to ensure the vehicles demonstrate basic skills and safety competence in various traffic scenarios. Liu emphasizes the importance of federal involvement in defining these standards to guide safety testing for autonomous vehicles. He suggests that the testing should evaluate the vehicle's ability to perform tasks like making left turns at intersections without dedicated signals, stopping at signs, and yielding to pedestrians. While Europe and China already employ third-party testing for autonomous vehicles, the U.S. currently relies on self-certification by manufacturers.