The term pre-OT is somewhat similar to preclear or pc, in that means someone at or above the state of Clear who, through auditing, is getting closer to OT.

But in many situations where the case level isn't being emphasized the term preclear or pc is used for both, and the pre-OT concerned does not usually take offense.

When does a pre-OT stop being a pre-OT and become an OT? In 1982 LRH renamed the then-existing OT levels up to OT VII pre-OT levels, with the actual OT levels starting at OT VIII.

But note that OT VIII would be the first of very many levels required to get a being up to the state described in the tech as operating thetan, and the technology required to achieve this is not yet released, and as far as is known does not exist on Earth, if anywhere.

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