| August 20, 1956 | HGC Procedure of Aug. 20 | L. Ron Hubbard writes HCOB 'HGC Procedure of Aug. 20 '. | |
| November 15, 1956 | HGC Preclear Complaints | L. Ron Hubbard writes HCOB 'HGC Preclear Complaints '. | |
| September 9, 1957 | Processes to Be Run on HGC Preclears from This Date | L. Ron Hubbard writes HCOB 'Processes to Be Run on HGC Preclears from This Date'. | |
| December 7, 1957 | HGC Procedure | L. Ron Hubbard writes HCOB 'HGC Procedure'. | |
| January 13, 1958 | HGC Running of Pcs | L. Ron Hubbard writes HCOB 'HGC Running of Pcs'. | |
| December 6, 1958 | How to Run an Engram, Brief Summary for HGC Use | L. Ron Hubbard writes HCOB 'How to Run an Engram, Brief Summary for HGC Use'. | |
| December 22, 1958 | New HGC Process, A New Straightwire | L. Ron Hubbard writes HCOB 'New HGC Process, A New Straightwire'. | |
| January 10, 1959 | HGC Allowed Processes | L. Ron Hubbard writes HCOB 'HGC Allowed Processes'. | |
| February 3, 1959 | HGC Current Procedure | L. Ron Hubbard writes HCOB 'HGC Current Procedure'. | |
| February 16, 1959 | HGC Processes for Those Trained in Engram Running or Trained in These Processes | L. Ron Hubbard writes HCOB "HGC Processes for Those Trained in Engram Running or Trained in These Processes". | |
| May 21, 1959 | HGC Allowed Processes and ACC Processes as of 21 May 1959 | L. Ron Hubbard writes HCOB 'HGC Allowed Processes and ACC Processes as of 21 May 1959'. | |
| July 21, 1959 | HGC Allowed Processes | L. Ron Hubbard writes HCOB 'HGC Allowed Processes'. | |
| August 5, 1959 | HGC Processes | L. Ron Hubbard writes HCOB 'HGC Processes'. | |
| January 10, 1961 | A Brief Outline of an HGC As Currently Done | L. Ron Hubbard writes HCOPL 'A Brief Outline of an HGC As Currently Done'. | |
| September 29, 1961 | HGC Allowed Processes | L. Ron Hubbard writes HCOPL 'HGC Allowed Processes'. | |
| October 23, 1961 | HGC Preprocessing Security Check | L. Ron Hubbard writes HCOPL 'HGC Preprocessing Security Check'. | |
| November 21, 1961 | HGC Processing Liability | L. Ron Hubbard writes HCOPL 'HGC Processing Liability'. | |
| April 26, 1962 | Recommended Processes HGC | L. Ron Hubbard writes HCOB 'Recommended Processes HGC'. | |
| July 30, 1962 | A Smooth HGC 25-Hour Intensive | L. Ron Hubbard writes HCOB 'A Smooth HGC 25-Hour Intensive'. | |
| October 8, 1962 | HGC Clearing | L. Ron Hubbard writes HCOPL 'HGC Clearing'. | |
| April 13, 1963 | Policy of HGCs | L. Ron Hubbard writes HCOPL 'Policy of HGCs'. | |
| July 22, 1963 | Org Technical, HGC Processes and Training | L. Ron Hubbard writes HCOB 'Org Technical, HGC Processes and Training'. | |
| March 18, 1964 | HGC Allowed Processes | L. Ron Hubbard writes HCOPL 'HGC Allowed Processes'. | |
| March 7, 1966 | HGC Cure (Continued) | L. Ron Hubbard writes HCOPL 'HGC Cure (Continued)'. | |
| March 5, 1971 | The Fantastic New HGC Line | L. Ron Hubbard writes HCOB 'The Fantastic New HGC Line'. | |
