Amendment 3 places language in the Missouri Constitution legalizing abortion up to fetal viability, which is usually around 24 weeks. Now that the amendment passed, abortion rights proponents plan to file lawsuits to strike down the state’s near-total ban.

Abortion rights advocates prevailed on seven ballot measures across the U.S. in Tuesday's election and lost on three.The losses are the first on statewide reproductive rights ballot measures anywhere in the U.

Missourians voted to reverse the state’s strict abortion ban in the Nov. 5 election. Here’s when Amendment 3 will take effect.