Zoox, a self-driving vehicle owned by Amazon, is seen at the company's Headquarters during a test drive in Foster City, California, U.S. October 15, 2024. REUTERS/Carlos Barria/File Photo Purchase Licensing Rights, opens new tabCompaniesAug 6 (Reuters) - The National Highway Traffic Safety Administration said Wednesday it has certified Amazon.com's (AMZN.O), opens new tab self-driving unit Zoox vehicles for demonstration use and closed a probe into whether they had complied with federal requirem...