Scientology contribute a proportion of their income and comply with the Religious Technology Center (RTC) and its standards. Operating Thetan levels are offered only at Scientology's Advanced Organizations (Los Angeles, Sydney, East Grinstead and Copenhagen). The Flag Service Organization in Clearwater, Florida offers OT levels VI and VII. The Scientology ship "Freewinds" offers OT VIII. In 1955, Hubbard created a list of 63 celebrities targeted for conversion to Scientology. In a church policy letter in 1973, L. Ron Hubbard wrote, "The purpose of [the] Celebrity Centre is, to forward the expansion and popularization of Scientology through the arts." Scientology operates eight
Flag Building the building would be opened to the public on October 6, 2013, with a dedication ceremony that the church estimated would attract approximately 10,000 Scientologists. However, a month later it emerged that the Church had canceled the ceremony and postponed the opening of the building. The building finally opened on November 17, 2013. The Church states the Super Power Building provides a dedicated center for delivering the Super Power Rundown, a high-level Scientology training course that has not yet been released. The Super Power Rundown was described by Scientology's founder, L. Ron Hubbard, as Hubbard wrote that "Super Power is