A Plant Code D = Datan Power Plant (fixed)B Unit No.0 = Plant Common8 = Unit 89 = Unit 9C Working Area Code1 = EPC Work (fixed)D System CodeSee Below “Identification Category”E F Sub-CategoryRefer to Attachment 2GH Vendor Code01 = GE / Marubeni Consortium (fixed)I Document and Drawing Category (see right)JKLM Serial Number (0000-9999)Refer to Attachment 2NO Revision NumberA,B,C… before Approval by TPC1,2,3… After Approval by TPC (during construction)