prototype used in Los Angeles and Long Beach was unveiled in 2018 and has also been tested in the Seattle area. Hydrogen infrastructure Eberle and Rittmar von Helmolt stated in 2010 that challenges remain before fuel cell cars can become competitive with other technologies and cite the lack of an extensive hydrogen infrastructure in the U.S.: , there were 43 publicly accessible hydrogen refueling stations in the US, 41 of which were located in California. In 2013, Governor Jerry Brown signed AB 8, a bill to fund $20 million a year for 10 years to build up to 100 stations. In 2014, the California Energy Commission funded $46.6 million to build 28 stations. Japan got its first commercial hydrogen fueling station in 2014. By March 2016, Japan had 80 hydrogen fueling stations, and the Japanese government aims to double this number to 160 by 2020. In May 2017, there were 91 hydrogen fueling stations in Japan. Germany had 18 public hydrogen fueling stations in July 2015. The German government hoped to increase this number to 50 by end of 2016, but only 30 were open in June 2017. Codes and standards Under United Nations global technical regulations for wheeled vehicles, specifically regarding hydrogen usage, there are international standards which define aspects of engineering and overall integrity, performance, safety, part lifecycle, and various other categories. One notable area of these regulations is regarding the compressed hydrogen storage systems that typically reach the end of qualified service life at 15 or fewer years in use. US programs In 2003, US President George Bush proposed the Hydrogen Fuel Initiative (HFI). The HFI aimed to further develop hydrogen fuel cells and infrastructure technologies to accelerate the commercial introduction of fuel cell vehicles. By 2008, the U.S. had contributed 1 billion dollars to this project. In 2009, Steven Chu, then the US Secretary of Energy, asserted that hydrogen vehicles "will not be practical over the next 10 to 20 years". In 2012, however, Chu stated that he saw fuel cell cars as more economically feasible as natural gas prices had fallen and hydrogen reforming technologies had improved. In June 2013, the California Energy Commission granted $18.7M for hydrogen fueling stations. In 2013, Governor Brown signed AB 8, a bill to fund $20 million a year for 10 years for up to 100 stations. In 2013, the US DOE announced up to $4 million planned for