PA61 Shift Substitutions Associated Files TM-53_PA61_Shift_Substitutions_5-29-20-A.pdfPA61 Shift SubstitutionsPDF • 662.76 KBDownload Details The purpose of this Business Process Procedure is to explain how to enter a substitute for an employee who is unable to work their shift. BPP TM-53. Last updated: May 29, 2020 First published: Apr 12, 2011