WASHINGTON, D.C. — Elon Musk’s Boring Co. received a permit for preparation and preliminary excavation of a site in the nation’s capital in hopes of building a hyperloop line that would extend from Washington, D.C. to New York, Tech Crunch reports.

In July, Musk tweeted that he had received verbal government approval to build a multi-state underground Hyperloop on the East Coast. While such approval doesn’t formally exist, the White House had reportedly had positive conversations with The Boring Company over the proposed tunnel.

Musk’s hyperloop tunnel would run from New York to Philadelphia to Baltimore to D.C. His company recently received a conditional permit to start operations in Hawthorne, Md., for a 10.3 mile route. Maryland officials told The Washington Post that the tunnel would run under Maryland Route 295, with the D.C.-Baltimore leg being built first. For the full story, click here.