Taxi company representatives, advocates for the disabled and members of Mayor Michael Bloomberg's administration attended.
The city's 13,000 yellow medallion cabs now have the exclusive right to pick up street hails.
Gov. Andrew Cuomo has delayed action on a bill passed by the Legislature that would change that.
Assembly Speaker Sheldon Silver says Tuesday he believes the only major issue still unsettled is how disabled people would be served.
The bill would bring revenue to the city and provide cabs to underserved areas.
Silver says he will send the bill to Cuomo by Dec. 31, which would force his veto or signature.