Michigan’s legislature passed a bill this week that blocks any cities in the state from passing their own minimum wage increases or paid sick leave requirements.

The text of the bill states that “the regulation of the employment relationship between a nonpublic employer and its employees is a matter of state concern,” and stipulates that local governments won’t be given the authority to pass any requirements like minimum wages or paid leave that are higher than what’s already in place at the state level. It now awaits the signature of Gov. Rick Snyder (R). The governor’s office did not return a request for comment about whether he will sign or veto it, but local advocates expect that the will.

If Snyder does sign the bill into law, Michigan would become the 12th state in the country to ban local governments from passing paid sick leave or minimum wage requirements, according to Ellen Bravo, executive director of Family Values @ Work. While just three states had these laws on the books as of 2012, eight have passed them since 2013.

More could also join in soon. Missouri similarly passed a preemption bill blocking local governments from enacting their own requirements, which is waiting for Gov. Jay Nixon (D)’s signature. And in Pennsylvania, a bill that would roll back the paid sick leave law passed the state legislature this year.