- preparatory to clearing. Prepclearing for short. Abandon all further reference to security checking or sec checking. The task of the auditor in prepclearing is to prepare a pc's rudiments so that they can't go out during 3D Criss Cross. We have just risen well above security checking in ease of auditing and in case gains. (HCOB 12 Feb 62)
- prepchecking is synonymous at the present moment. (SH Spec 114, 6202C21)