Deliveries will be free for patients, with driver fees and Eaze paid by dispensaries in exchange for gaining new business. Eaze will verify customers' legal rights to buy marijuana by reviewing images of their doctors' notes and drivers' licenses, submitted online. Drivers' cars will be unmarked - important because they must accept cash for deliveries, due to strict federal rules regulating banks and credit card companies. A Washington state company called Canary, founded by two students, also calls itself the "Uber of pot" because it uses a smartphone app. Drivers - called "caregivers" by Eaze - must pass criminal and driving background checks and must themselves be medical marijuana users so they are legally allowed to carry 8 ounces. According to McCarty, Eaze carries insurance in addition to the drivers' personal policies, but the company did not respond to a request for more details on the amount and type of its policies. "Most businesses that handle marijuana, including delivery services and storefront dispensaries, have found it very, very difficult to get a bank account because of federal laws," said Chris Walsh, editor of Marijuana Business Daily in Rhode Island. Eaze has a bank account because it positions itself as a technology company, McCarty said, but it doesn't accept credit cards.