Three taxi and limousine trade associations have lost in their bid to revive a case against the city of Newark over what they claim to be comparatively lighter regulations placed upon Uber and other ride-sharing companies than what cab and limo companies operate under.

The U.S. Court of Appeals for the Third Circuit on Monday upheld a New Jersey federal judge's decision to throw out the case, reasoning that the associations had no constitutionally legal ground to support their claims that Uber was given an unfair advantage.

By having different rules for traditional transportation companies and transportation network companies, or “TNCs” as the court labeled them, the associations argued that the city violated their rights under the takings clause of the Fifth Amendment and the due process and equal protection clauses of the 14th Amendment.