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Where can Scientologists receive training for OT levels I through V?
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Scientology
L. Ron Hubbard's seminal – and controversial – work was Dianetics: The Modern Science of Mental Health, written in 1950.
Scientologists who have attained the state of clear and wish to advance toward becoming an operating thetan can receive training for OT levels I through V at one of the church's Advanced Organization centers.1