PGI 204.1603 Procedures.       (a)(3)(A)(*3*) Legacy contract writing systems authorized to use the letter T in position 9 of the PIID for automated requests for quotation include the following:          (*i*) Department of Navy’s Item Management and Procurement (ITIMP) system.          (*ii*) Defense Logistics Agency’s Enterprise Business System (EBS).          (4) Positions 10 through 17. Positions 10 through 13 of a DoD-issued PIID shall not be a sequence of four zeroes (i.e., “0000”).          (b) Elements of a supplementary PIID.          (1) Position 1. Use a “U” in position 1 (e.g., “U00001”) in lieu of an “A” or “P”, as necessary, to process draft modifications through contract writing systems and associated applications. Change the “U” to an “A” or “P” prior to award to comply with FAR and DFARS standards.          (2)                 *Positions 2 through 6.*              Examples of proper numbering for positions 2 through 6 are as follows:          Normal modification                      Provisioned items order (reserved for exclusive use                         by the Air Force only)                      Shipping Instructions00001 — 99999                                            K0001                      —                      K9999                                            S0001                      —                      S9999then                                            KA001                      —                      KZ999                                            SA001                      —                      SZ999A0001 — A9999                                            L0001                      —                      L9999                                            T0001                      —                      T9999B0001 — B9999                                            LA001                      —                      LZ999                                            TA001                      —                      TZ999and so on to                                            M0001                      —                      M9999                                            U0001                      —                      U9999H0001 — H9999                                            MA001                      —                      MZ999                                            UA001                      —                      UZ999then                                            N0001                      —                      N9999                                            V0001                      —                      V9999J0001 — J9999                                            NA001                      —                      NZ999                                            VA001                      —                      VZ999then                                            P0001                      —                      P9999                                            W0001                      —                      W9999R0001 — R9999                                            PA001                      —                      PZ999                                            WA001                      —                      WZ999then                                            Q0001                      —                      Q9999                                            X0001                      —                      X9999AA001 — HZ999                                            QA001                      —                      QZ999                                            XA001                      —                      XZ999thenJA001 — JZ999                                                                                                                                    Y0001                      —                      Y9999RA001 — RZ999                                                                                                                                    YA001                      —                      YZ999(3) If the contract administration office is changing the contract administration or disbursement office for the first time and is using computer generated modifications to notify many offices, it uses the six position supplementary number ARZ999. If either office has to be changed again during the life of the contract, the supplementary number will be ARZ998, and on down as needed.    **Parent topic:** PGI 204.16 -UNIFORM PROCUREMENT INSTRUMENT IDENTIFIERS