| May 18, 1957 | Policy on Signatures in Publications | L. Ron Hubbard writes HCOPL 'Policy on Signatures in Publications'. | |
| November 24, 1958 | Magazine Policy | L. Ron Hubbard writes HCOPL 'Magazine Policy'. | |
| November 27, 1958 | Basic Financial Policy, HCO | L. Ron Hubbard writes HCOPL 'Basic Financial Policy, HCO'. | |
| December 13, 1958 | Important Information on Policy Letters | L. Ron Hubbard writes HCOPL 'Important Information on Policy Letters'. | |
| March 25, 1959 | Book Policy | L. Ron Hubbard writes HCOPL 'Book Policy'. | |
| June 21, 1959 | Signatures on Bulletins, Policy Letters and SECEDs | L. Ron Hubbard writes HCOPL 'Signatures on Bulletins, Policy Letters and SECEDs'. | |
| October 21, 1959 | Routing of Bulletins and Policy Letters | L. Ron Hubbard writes HCOPL 'Routing of Bulletins and Policy Letters'. | |
| January 24, 1961 | A Test Policy on MD Referrals | L. Ron Hubbard writes HCOPL 'A Test Policy on MD Referrals'. | |
| April 17, 1961 | Training, Professional, New Policy | L. Ron Hubbard writes HCOPL 'Training, Professional, New Policy'. | |
| August 23, 1961 | HPA/HCA Policy | L. Ron Hubbard writes HCOPL 'HPA/HCA Policy'. | |
| September 3, 1961 | HCO Vol Sec Policy Revised | L. Ron Hubbard writes HCOPL 'HCO Vol Sec Policy Revised'. | |
| September 20, 1961 | Training Policy | L. Ron Hubbard writes HCOPL 'Training Policy'. | |
| October 2, 1961 | Mission Policies | L. Ron Hubbard writes HCOPL 'Mission Policies'. | |
| July 2, 1962 | Rudiments Policy | L. Ron Hubbard writes HCOPL 'Rudiments Policy'. | |
| March 23, 1963 | Policies in Force, Org/Assoc Secs, HCO Secs | L. Ron Hubbard writes HCOPL 'Policies in Force, Org/Assoc Secs, HCO Secs'. | |
| August 14, 1963 | Press Policies PR Series 31 | L. Ron Hubbard writes HCOPL 'Press Policies PR Series 31'. | |
| October 23, 1963 | Refund Policy | L. Ron Hubbard writes HCOPL 'Refund Policy'. | |
| January 14, 1964 | Continental and Area HCO Finance Policies | L. Ron Hubbard writes HCOPL 'Continental and Area HCO Finance Policies'. | |
| May 6, 1964 | Accounts Policies | L. Ron Hubbard writes HCOPL 'Accounts Policies'. | |
| July 2, 1964 | Bulletin and Policy Letter Distribution | L. Ron Hubbard writes HCOPL 'Bulletin and Policy Letter Distribution'. | |
| August 12, 1964 | Policy on Technical Information | L. Ron Hubbard writes HCOPL 'Policy on Technical Information'. | |
| September 23, 1964 | Policies: Dissemination and Programs | L. Ron Hubbard writes HCOPL 'Policies: Dissemination and Programs'. | |
| October 27, 1964 | Policies on Physical Healing, Insanity and Sources of Trouble | L. Ron Hubbard writes HCOPL 'Policies on Physical Healing, Insanity and Sources of Trouble'. | |
| November 17, 1964 | Off-Line and Off-Policy, Your Full In-Basket | L. Ron Hubbard writes HCOPL 'Off-Line and Off-Policy, Your Full In-Basket'. | |
| February 10, 1965 | Ad and Book Policies | L. Ron Hubbard writes HCOPL 'Ad and Book Policies'. | |
