Joby Aviation -- the publicly-traded electric air vehicle company with a current market cap of $3.1 billion -- has received the necessary certification from the Federal Aviation Administration to begin on-demand commercial air taxi operations, the company said on Thursday.

While it's a significant milestone that puts Joby closer to its stated goal of launching its electric aerial ridesharing service commercially in 2024, the startup still has a ways to go until it can ferry passengers in its electric vertical takeoff and landing (eVTOL) vehicles.

Joby has only built two prototype vehicles and wouldn't share with TechCrunch how many it intends to build and deploy for its initial launch. Additionally, the Part 135 Air Carrier Certificate received this week is only one of three FAA certifications the company will need to actually operate its eVTOLs as air taxis across the United States -- the other two are a Type Certificate and a Production Certificate.

That said, Joby recently acquired Avionyx, an aerospace software engineering firm with a long track record of helping aviation companies secure FAA certifications. And in March, Joby said it would work with CAE, an aviation trainer, to develop and qualify flight simulation training devices so commercially rated pilots can train to fly eVTOLs.

“The procedures we’ve prepared lay a foundation for our future eVTOL operations," said Bonny Simi, head of air operations and people at Joby and one of the company's FAA-approved pilots, said in a statement. "Over the coming months, we will use our Part 135 certificate to exercise the operations and customer technology platforms that will underpin our multi-modal ride-sharing service, while also refining our procedures to ensure safe and seamless journeys for our customers."

Joby Aviation eVTOL aircraft prototype. Image Credit: Joby Aviation

In other words, Joby will start testing out the back end technology needed to operate what will be an Uber-like ride-hail service in the sky, a company spokesperson told TechCrunch. For example, Joby has been building tech that shows pilots where their next ride will come from, similar to how Uber drivers can see who they'll be picking up next. Once the consumer app is developed, Joby will start testing it out with employees, a spokesperson told TechCrunch, noting that the company will likely run a customer pilot after that.