https://arstechnica.com/tech-policy/2019/12/new-york-governor-vetoes-bill-that-would-have-made-electric-scooters-legal/

On Thursday, New York Governor Andrew Cuomo vetoed a widely supported bill that would have legalized electric bicycles and scooters. The bill was the result of extensive negotiations and compromises that sought to balance a set of competing interests. But in vetoing the bill, Cuomo cited an interest that he felt hadn't been properly considered: public safety, specifically the lack of a helmet requirement.

By waiting until the end of the year to veto the bill, Cuomo has left the legislature without an opportunity to override this veto, meaning the whole process will have to start again next year.