The Grade Chart and Standard Technology

A visitor to our church asked the following:

What’s with the squirrel grade chart?
I saw LRH’s written instructions to REMOVE original OT IV-VII from the Grade chart and to remove them from PC programming.
Why squirrel his instruction?

The answer is that L Ron Hubbard did not write instructions to remove these levels.
The change to remove original OT IV-VII was made by HCOB 19 Jan 1982 “NEW – STREAMLINED CLASSIFICATION AND GRADATION CHART.”
That HCOB was not written by LRH, and was later cancelled.