Joining their bicycle and scooter cousins, rentable mopeds will soon join the scene on many a D.C. sidewalk.

The District Department of Transportation has launched a four-month test phase, similar to how it handled electric scooters and bikes in previous years. The first company to get a permit to operate mopeds in the district is called Revel, and it has permission to operate up to 400 of the two-wheeled vehicles.

Mopeds are the latest shared, app-rentable vehicles to become available in D.C., following cars, bikes and electric scooters. Outside of cars, mopeds are the most powerful vehicles available through an app. This has raised safety concerns from AAA and people like Gerald Helfgott, owner of Modern Classics, a scooter and motorcycle shop in D.C. Helfgott recommends training before riding a moped. He also is wary of other drivers.

“I would tell all new riders, you’re going to feel like every car driver’s out to kill you,” Helfgott said on the Kojo Nnamdi Show on Monday. “You’ll discover that [drivers] just don’t see you, and that you’re really responsible for your own safety and watching out.”

The mopeds are not allowed on sidewalks or in bike lanes, and riders must wear helmets. Other rules include:

• Riders must be 21 and have a current driver’s license.
• Riders must pay $19 for a safe driving record background check. Revel says 1 in 12 riders are rejected based on the background check. People who are eligible for, or actively participating in, any locally or federally administered assistance program can get the registration fee waived and get a 40 percent discount on rides.
• Mopeds can carry up to two riders and both must wear the provided helmets.
• Mopeds are limited to local streets—not highways, bike lanes or sidewalks.
• They must be parked on the street, unlike privately-owned mopeds.
• Operating hours are from 5 a.m. to midnight every day.
• Speeds are capped at 30 mph.
• Every D.C. rider is covered up to $300,000 in third-party liability insurance.

Frank Reig, CEO and co-founder of Revel said the company worked closely with DDOT and shares their goals of providing “new, reliable transportation options that work seamlessly in the city’s current regulatory, transportation, and parking systems and help the District meet its aggressive carbon emissions goals.”

Washington is Revel’s second location after New York. The company says it will hire 30 people to work in its warehouse in Ward 4. It’s also offering free driving lessons seven days a week for those interested in riding or safety instruction.

The mopeds will cost $1 per person to start a ride and 25 cents a minute to ride, plus 10 cents per minute while parked.

Revel’s initial area of operation in D.C. focuses heavily on the Downtown Business District and the surrounding area. While it meets the requirements to serve all eight wards, it only touches parts of Wards 3, 4, 5, 7 and 8. This has drawn some criticism.

That is not going to fly. When one of the ridehailing companies, dockless scooter and bikeshare companies, and one of the carshare companies tried to not serve all eight wards equally, they all got their hands slapped. Sometimes, publicly, through the press, by the mayor.

— Aaron Landry (@s4xton) August 12, 2019

Landry’s tweet refers to Via, a ride-hailing company that got in hot water with the city in 2018. The mayor told Via to cover all eight wards or face fines or risk losing its operating permit, the Washington Post reported.

This story originally appeared on WAMU.