This applies to different types of judges, not religious figures.
I know that only judges of the "D.C. Courts" may officiate weddings in Washington, D.C. unless an application for authorization for a different officiant is approved. But when I looked at the Marriage Bureau website, I only saw applications for other religious officiants to be authorized.
http://www.dccourts.gov/dccourts/superior/family/marriage.jsphttp://www.dccourts.gov/dccourts/docs/family/marriage.pdfIs there an application for non-D.C. judges to receive permission to officiate a wedding in D.C.? Has anyone gotten a non-D.C. judge to officiate their wedding?