This article says they're in contention for a contract with the US Postal Service. It's dated March 11, 2019. If that's the case, they'll have to make them entirely street legal, including the crash and emission tests. It says they want to make them less expensive but not cheap.
STREET LEGAL

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.