The term "OT" stands for "Operating Thetan", a thetan who can play and operate without being dependent on a body. In addition, "OT" is a registered trademark owned by Religious Technology Center. The OT Levels are those sections of the practices of Scientology which lead the person who is already Clear and has done the lower bridge with the Grades further up toward spiritual freedom and increased abilities. The abilities gained from doing these levels are assumed to be leading one towards the state of OT as above, but do not deliver the state of being able to operate without a body. A person who has completed one or more of these levels is often called "An OT", but that is something of a misnomer, and should not be confused with the state mentioned above. If there is a technology at this t