In a major setback for app-based gig economy companies like Uber, Lyft and DoorDash, a Massachusetts court ruled on Tuesday to throw out a proposed ballot measure that would, if passed, define gig workers as independent contractors rather than employees.

The Massachusetts Supreme Judicial Court's unanimous decision found that the ballot initiative violated state law and was therefore ineligible to put to voters this fall. The move, which has ended a $17.8 million campaign by gig companies to support the measure, signifies a major win for labor rights activists who argue that companies have been failing to provide proper worker protections and benefits, like workers' compensation or even a basic minimum wage. In fact, one study found workers in Massachusetts could earn $4.82 per hour if the measure passed.

The Massachusetts Coalition for Independent Work, the coalition of app-based gig companies that proposed the ballot initiative, did not confirm whether or not it would continue to fight in Massachussetts, but Uber CEO Dara Khosrowshahi has stated multiple times that the company would support and promote similar proposals across the United States. Uber and other companies are actively working to do just that in states like Colorado, Illinois, New Jersey, New York and Washington.

In September 2021, Attorney General Maura Healey gave the coalition the green light to start collecting signatures needed to put the measure before voters, despite having sued Uber and Lyft in the past to challenge their defining of drivers as contractors.

Justice Scott Kafker said on Tuesday that Healey, a Democrat running for governor, was wrong to say the proposal complied with state constitutional requirements limiting ballot measures to related subjects. Kafker said the coalition included a vaguely worded, unrelated proposal to limit companies' liability for accidents by their drivers. This is a particularly hot topic in the wake of research that has documented at least 50 deaths of gig workers on the job since 2017, with minimal effort from the companies to provide support to families of victims.