Do an internet search on local marriage laws in your area, or visit your local clerk, registrar, or other marriage authority for detailed information. For example, in many states in the US, you may need to be a judge, magistrate, or ordained minister in order to become an officiant. In other states, such as Pennsylvania, no officiant is required at all, and the couple can marry themselves as long as there are at least two witnesses present.Get ordained, if you need to.