Defense Department guidance issued to military chaplains said they may participate in ceremonies on or off military bases in states that recognize gay unions. Chaplains are not required to officiate at same-sex weddings if doing so is counter to their religious or personal beliefs, the guidance said.

And regardless of the Pentagon guidance, military chaplains will still need to take cues from their religious order, said Gary Pollitt, spokesman for the Military Chaplains Association.

“Just because the Department of Defense says this can happen, the chaplains perform such rites in keeping with their ecclesiastical authorization. Period,” Pollitt said.