Philadelphia District Attorney Seth Williams plans to meet with taxi and Uber Black drivers next week to hear their complaints about ride-sharing services like UberX and Lyft.
Williams will sit down with the drivers on Tuesday, his office and the Philadelphia Limo Association confirm.
The drivers have argued the low-cost services which are exempt from parking authority licensing requirements by using drivers' personal cars are hurting their business.
The taxi drivers are required to pay yearly for operating licenses through the Philadelphia Parking Authority and carry large insurance policies. They're also subjected to a number of regulations.
The popular smartphone app-driven services do not have to contend with any of that.
State lawmakers continue to debate the legality of the services, but in the meantime they're allowed to operate. UberX handled its 1 millionth Philly ride in October.
Taxi and Uber Black drivers, which are black car limo drivers operating as Uber's premium service, have held a number of protests arguing the services should be shut down or ordered to comply with the same rules.
On Wednesday, some 600 drivers flooded Center City. They parked their cars in the middle of streets around City Hall and marched for about 30 minutes.