On Wednesday, the California Legislature passed Assembly Bill 5 (AB 5), which will protect gig workers and curb the horrible exploitation at the heart of Silicon Valley’s “innovation.” By correctly redefining rideshare drivers and others as employees, AB 5 expands the rights most workers take for granted to gig workers and others misclassified as “independent contractors.”

After a major push by California unions and progressive lawmakers, AB 5 is a huge victory for workers everywhere. Not only will this protect previously misclassified workers, but it will take misclassification out of the toolbox companies use to undermine all workers’ rights and unions in particular.

But the fight isn’t over. California Governor Gavin Newsom has pledged to sign the bill when it gets to his desk, and while it is planned to go into effect on January 1, 2020, Uber, Lyft, and others are already promising to bring litigation against the law that could delay its implementation indefinitely. And gig economy employers have also already pledged to spend nearly $100 million on a statewide ballot measure in 2020 to undo AB 5.