Scientology Chronology - April 1962
| April 3, 1962 | The OvertMotivator Sequence | |
| April 4, 1962 | Training Course Regulations (Added) | |
| April 5, 1962 | As-isness: People Who Can and Can't As-is | |
| April 5, 1962 | Sacredness of Cases-Determinism | |
| April 5, 1962 | CCHs, Auditing Attitude | |
| April 6, 1962 | Technical Director Basic Hat | |
| April 11, 1962 | Dynamic Processing Checks | |
| April 11, 1962 | Determining What to Run | |
| April 12, 1962 | CCHs, Purpose | |
| April 16, 1962 | Comments on Letter Registrar Department | |
| April 16, 1962 | Regulations, Academies and Courses | |
| April 17, 1962 | Auditing | |
| April 17, 1962 | How and Why Auditing Works | |
| April 18, 1962 | Furniture and Quarters | |
| April 19, 1962 | Determining What to Run | |
| April 19, 1962 | Gross Auditing Errors | |
| April 24, 1962 | Rundown on 3D Criss Cross, Part | |
| April 24, 1962 | Rundown on 3D Criss Cross, Part | |
| April 25, 1962 | TV Demo: Checking Line Plots | |
| April 26, 1962 | Rundown on Prepchecking: Professional Attitude | |
| April 26, 1962 | Rundown on Routine 3: Routine 3A Criss Cross | |
| April 26, 1962 | Recommended Processes HGC | |
| April 29, 1962 | Routine 3G (Experimental) | |
| May 1, 1962 | ARC Breaks and Missed Withholds | |
| May 1, 1962 | Routine 3G: Experimental Preview of a Clearing Process | |
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