The Taxi of Tomorrow will become the standard cab on New York City’s streets starting on Sept. 1, the city’s Taxi and Limousine Commission announced on Friday.

After a yearslong legal battle, most taxi owners will be required to switch to the Nissan NV200 model, also known as the Taxi of Tomorrow, when they retire their cabs. The State Court of Appeals ruled last month that the city had the authority to pick a taxi model, ending a challenge by opponents of the vehicle.

The taxi commission had set April 20 as the start for the new vehicle rules, but the Court of Appeals granted a stay in March to temporarily halt those efforts while it decided the case. Taxi owners can also choose certain hybrid or wheelchair-accessible vehicles, depending on the type of medallion they have.

Hundreds of taxi owners have already moved to the boxy NV200, which has sliding doors and room for four passengers. Commission officials estimate that the model could eventually make up as much as 80 percent of the fleet of about 13,500 yellow taxis.