New York City Mayor Eric Adams on Wednesday announced proposed rules that would require ride-sharing companies’ fleets in the city to go green or be more accessible by 2030.

The Green Rides Initiative proposal would make the city the first metropolis with a set of rules requiring that all vehicles used by companies such as Uber and Lyft be either zero-emission or wheelchair-accessible by the end of the decade.

“When it comes to driving towards sustainable and inclusive transportation alternatives, New York City isn’t just along for the ride; in fact, we are leading the way,” Adams said. “By championing the integration of zero-emission vehicles and wheelchair-accessible transportation, we are cutting dirty emissions and guaranteeing equitable transportation opportunities for every New Yorker.”

The proposal would require 5% of all high-volume for-hire trips be zero-emission or wheelchair-accessible starting in 2024; that requirement would increase by 20% each year after 2026.

Companies would be fined $50 for every 1,000 trips they are below a year’s percentage requirement and have to file a corrective action plan. They would then be fined $500 and be suspended from operating in the city for 30 days if they are found not to be following their prescribed plans.

The proposal is part of Adams’ larger PlaNYC program, a long-term climate plan that, among other things, seeks to ensure every New Yorker lives within 2.5 miles of an electric vehicle charging station by 2035, and electrify school buses and the city’s own fleet. According to the New York City Taxi and Limousine Commission, the 78,000 for-hire vehicles that it has licensed account for about 4% of the city’s vehicle emissions.

Comments on the Green Rides Initiative can be submitted online, and a hearing on the proposal is scheduled for Sept. 20.