(AP) – Some Missouri same-sex couples might have to wait to obtain marriage licenses following Friday’s landmark U.S. Supreme Court decision to legalize those unions.

Democratic Gov. Jay Nixon on Friday said he’ll take necessary action to implement the ruling throughout the state.

But the court’s ruling won’t take effect immediately. Justices are giving the losing side about three weeks to ask for reconsideration.

Recorders in the Kansas City and St. Louis areas have been issuing marriage licenses to same-sex couples since federal and state-level rulings overturned Missouri’s ban on the practice.

But recorders in other counties were hesitant and said those rulings didn’t apply statewide.

Recorders on Friday appeared to be taking a similarly cautious approach as the U.S. Supreme Court ruling was reviewed.

The Buchanan County Recorders Office was able to start issuing as soon as the ruling was announced Friday.