DLMS Data Dictionary

The Authoritative Resource for DLMS X12 Data Elements and Codes

This Data Dictionary is the authoritative reference for all data elements used across Defense Logistics Management Standards (DLMS) Implementation Conventions (ICs). It provides standardized definitions and technical specifications for DLMS and its underlying ANSI ASC X12 data structures.

What This Dictionary Provides:

  • Clear Definitions: Find the official business definition and purpose for every data element used in DLMS transactions.
  • Technical Specifications: Get the exact technical format, length, and structure for each element as it appears in an X12 transaction.
  • DLMS to X12 Mapping: Understand exactly how a DLMS business term maps to a specific X12 segment and element (e.g., "Ship-To Address" maps to N1*ST in the 511R transaction).

Who Should Use This Resource:

  • System Developers & Integrators: To correctly build, map, and test DLMS-compliant applications.
  • Logistics & Supply SMEs: To understand the precise meaning and proper use of data in our business processes.
  • Data Analysts & Managers: To ensure data quality, standardization, and interoperability across systems.

Key Implementation Notes:

  • Relationship to Implementation Conventions (ICs): This Data Dictionary is a reference tool that enhances and supports the DLMS Implementation Conventions (ICs); it does not replace them. For proper implementation, users must consult the detailed guidance and business rules contained within the applicable IC.
  • Governing Standards: All data elements are governed by the Accredited Standards Committee X12 (ASC X12) and the policies within DLM 4000.25, Defense Logistics Management Standards (DLMS). The ASC X12 is the governing source for X12, which is an electronic data interchange (EDI) standard.
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View ICSorted by ascending REF CODE X12 CODE NAME GENERAL CODE DEFINITION CODE DLMS NOTE DLMS MIN MAX
  856P REF01 0L Referenced By "Use to describe the type of secondary transportation identification number associated with the value cited as Other Unlisted Transportation Number" Use to describe the type of secondary transportation identification number associated with the value cited as Other Unlisted Transportation Number (REF01=XY Other Unlisted Type of Reference Number) 1/30
  856P REF01 12 Billing Account Use to identify the Authorization Accounting Activity (AAA). AAA is a field identifier used by the Department of Defense (DoD) to identify the location that does the accounting for a budget line Use to identify the Authorization Accounting Activity (AAA). 6/6
  856P REF01 2E Foreign Military Sales Case Number Use to identify a code assigned by the Implementing Agency (IA) that forms part of a unique case identifier for each Security Cooperation case 1. Use in the shipment loop, HL03=S, to identify three-position Security Cooperation (SC) Case Designator. 2. Within the WAWF application this element is used to construct the �Foreign Military Sales Case Number� which is the concatenation of the SC Customer Code, SC Implementing Agency Code, and SC Case Designator structured as XX-X-XXX. 3/3
  856P REF01 93 Funds Authorization Use to indicate the Standard Document Number Applicable to Line Item loop. Use to indicate the Standard Document Number. Length is 1-30. 14/14
  856P REF01 AI Associated Invoices Invoices that are related to each other in some way, such as through a purchase order or recurring orders Applicable to Shipment loop. When used REF03 will reflect the associated invoice date in CCYYMMDD format. 8/8
  856P REF01 AW Air Waybill Number Use to identify air waybill document prepared by a transportation line at the point of origin of a shipment showing the point of origin, destination, route, consignor, consignee, description of shipment and amount charged for the transportation service This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit air waybill number. 11/11
  856P REF01 AX Government Accounting Class Reference Number (ACRN) Use to allow multiple Government Accounting Class Reference Number (ACRNS) Applicable to Line Item loop. Future enhancement to allow multiple ACRNS. When the future multiple ACRN is implemented, REF03 will contain the amount associated with the ACRN. 1/30
  856P REF01 BL Government Bill of Lading A number assigned to a document by a consignor which represents a limited liability contract covering transportation of property from one place to another Applicable to Shipment loop. Use to identify the shipment unit Government bill of lading number 7/17
  856P REF01 BM Bill of Lading Number Use to identify the shipment unit commercial bill of lading number Applicable to Shipment loop. Use to identify the shipment unit commercial bill of lading number. 1/16
  856P REF01 BN Booking Number Reservation number assigned to shipment This is authorized as a secondary transportation identification numbers in WAWF. Use to identify shipment unit �Sealift Booking Number.� 15/15
  856P REF01 CN Carrier's Reference Number (PRO/Invoice) Use to identify the PRO or invoice number that is a progressively sequential numbering system generated by commercial carriers to identify freight bills Use to identify the �PRO/Invoice Number.� A PRO or invoice number is a progressively sequential numbering system generated by commercial carriers to identify freight bills. 1/30
  856P REF01 DD Document Identification Code 1. Use to identify the Government Micro-Purchase Reference. 2. Use by the Government submitter to provide a value associated with a micro-purchase where no procurement document number is otherwise assigned. 1/30
  856P REF01 DO Delivery Order Number Use to indicate a delivery order is being corrected For WAWF, use to indicate a delivery order is being corrected. The vendor will enter the Delivery Order Number of the immediately preceding Corrected Receiving Report or Receiving Report, to which this correction applies. 13/13
  856P REF01 E4 Charge Card Number Use to indicate the last four digits of the Government credit card number under which payment for this instrument will be accomplished Use to indicate (in REF02) the last four digits of the Government credit card number under which payment for this instrument will be accomplished. 4/4
  856P REF01 FI File Identifier Use to indicate that the number of different types of accountable transactions is being reported This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the �Port Call File Number (PCFN).� This is a sealift identifier generated and assigned by the Integrated Booking System to uniquely identify a booking; sometimes referred to as the government�s booking number. 1/30
  856P REF01 FS Final Sequence Number to identify the Final Shipment In For WAWF, use in Shipment loop (HL03 Code S) to identify the Final Shipment Indicator. Enter �Y� in REF02 to identify that the transaction is a Final Shipment. Enter �N� if the transaction is not final. 1/1
  856P REF01 IZ Insured Parcel Post Number Assigned to a package being shipped when the article being sent has a value and accountability is required This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit insured parcel post number. 1/17
  856P REF01 JH Tag Use to identify an item in a transaction by its Radio Frequency Identification (RFID) tag value Use in RFID/Pack loops to identify the RFID tag value at the applicable pack level (i.e.., palletized unit load, exterior container, or IUID packaging). Cite the RFID in the REF03. 1/30
  856P REF01 K2 Certified Mail Number Number assigned by the US Postal Service (USPS) certifying proof of delivery This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit certified mail number. 1/17
  856P REF01 K3 Registered Mail Number A number assigned by the US Postal Service to identify mailed items that require additional protection and security in dispatch and conveyance in the united states This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit registered parcel post number. 1/17
  856P REF01 KL Contract Reference Use to indicate the reference in the contract that generates the requirement 1. For a Contract Data Requirements List data item, use to indicate the reference in the contract that generates the requirement for the data item, e.g., Statement of Work paragraph. 2. For WAWF, use to indicate a Contract Number Type. Cite the applicable code in REF02. A - Cooperative Agreement B - DoD Contract (FAR) C - DoD Contract (Non-FAR) D - Grant E - Intragovernmental F - Intergovernmental G - International Agreement I - Non-DoD Contract (FAR) J - Non-DoD Contract (Non-FAR) K - Other Agreement S - Uniform PIID (FAR 4.16) 1/50
  856P REF01 LA Shipping Label Serial Number Use to identify the fixed- length 18 character Serial Shipping Container Code (SSCC) used by North Atlantic Treaty Organization (NATO) partners to track shipment units Use to identify the fixed-length 18 character Serial Shipping Container Code (SSCC) used by NATO partners to track shipment units. Only one SSCC per ASN is authorized. 18/18
  856P REF01 LT Lot Number Use to transmit the specific production batch or run number of a product Use with HL03=PH to identify a batch or lot number for a product produced at one time under the same manufacturing conditions. The field length for batch or lot number is limited to 20 characters. 1/20
  856P REF01 P1 Previous Contract Number Use to indicate a contract or procurement instrument identifier (PIID) is being corrected For WAWF, use to indicate a procurement instrument identifier (PIID) is being corrected. The vendor will enter the PIID of the immediately preceding Corrected Receiving Report or Receiving Report, to which this correction applies. 1/30
  856P REF01 P4 Project Code Use to identify the warehouse project code Use in the line item loop, HL03=I, to identify the MILSTRIP Project Code. 3/3
  856P REF01 RE Release Number Use to identify the Edition Year of the Emergency Response Guide Applicable to Shipment loop. Indicate Y in REF02 when Alternate Release Procedures (ARP) are applicable. 1/50
  856P REF01 RQ Purchase Requisition Number Use to identity the Purchase Request Number Applicable only to the Line Item Loop. Use to identity the Purchase Request Number. (Do not use for the requisition document number which is mapped to Qualifier Code TN, Transaction Reference Number.) 1/30
  856P REF01 SE Serial Number A value assigned for identification of an item 1. For WAWF, use to identify the human readable serial number in the Quality Characteristics loop (HL03=G) and the HL03=P). Enter the actual serial number in REF02. 2. For the Pack loop, use the Mark Indicator �W9� in REF04-01 and enter �Yes� in REF04-02 for item serial number that is packed across multiple boxes; there must be one, and only one, mark indicator per item. 1/50
  856P REF01 TG Transportation Control Number (TCN) A 17-position alphanumeric assigned to control and manage every shipment unit throughout the transportation pipeline The TCN is a 17-character data element assigned to control and manage every shipment unit throughout the transportation pipeline. The TCN for each shipment is unique and not duplicated. Only one TCN per ASN is authorized. 17/17
  856P REF01 TH Transportation Account Code (TAC) Use to identify the appropriation or user responsible for paying the transportation costs Use in the shipment loop, HL03=S. The Transportation Account Code is a data element used to identify the appropriation or user responsible for paying the transportation costs. 4/4
  856P REF01 U3 Unique Supplier Identification Number (USIN) A globally unique and unambiguous identifier that distinguishes an item from all other like and unlike items. The UII is derived from a UII data set of one or more data elements 1. Use in IUID loop to identify the UII value. Cite the UII in REF03. Cite the UII pedigree serial number, when applicable, in REF02. 2. Use in RFID loop for UII value when RFID is provided at the IUID packaging level. 1/50
  856P REF01 WY Waybill Number Use to identify a carrier accounting number of the waybill for the inbound movement This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit �Surface Waybill Number.� 8/11
  856P REF01 XY Other Unlisted Type of Reference Number Use to identify other unlisted type of transportation number This is authorized as a secondary transportation identification numbers in WAWF. Use to identify �Other Unlisted Transportation Number.� Use additional REF segment instance with Qualifier �0L� to explain the type of number identified. 1/17
  856P REF01 ZH Carrier Assigned Reference Number Use to identify the shipment unit express mail number This is authorized as a secondary transportation identification numbers in WAWF. Use to identify the shipment unit �Express Mail Number�. 1/9
  856P REF01 ZM Manufacturer Number Use to identify the manufacturer Use with HL03=PH to identify the text name of the product�s manufacturer. For DMLSS, if a batch/lot is provided, the actual Manufacturer must be provided---either by submitting using N1 segment in PH Loop or providing this ZM Code with text name of manufacturer. 1/30
  856P REF01 SCC Security Cooperation Customer Code 1. Use in the shipment loop, HL03=S, to identify the two-position Security Cooperation Customer Code. 2. Within the WAWF application this element is used to construct the �Foreign Military Sales Case Number� which is the concatenation of the SC Customer Code, SC Implementing Agency Code, and SC Case Designator structured as XX-X-XXX. 3. A local code �SCC� is established for use in the 856P, version 4010. A data maintenance action has been submitted for establishment of �SCC- Security Cooperation Customer Code� in a future version. 2/2
  856P REF01 SCI Security Cooperation Implementing Agency Use to identify the military department or defense agency responsible for the execution of military assistance programs. With respect to Foreign Military Sales (FMS), the military department or defense agency assigned responsibility by the Defense Security Cooperation Agency to prepare a Letter of Offer and Acceptance (LOA) and to implement an Foreign Military Sales (FMS) case 1. Use in the shipment loop, HL03=S, to identify the one-position Security Cooperation Implementing Agency. 2. Within the WAWF application this element is used to construct the �Foreign Military Sales Case Number� which is the concatenation of the SC Customer Code, SC Implementing Agency Code, and SC Case Designator structured as XX-X-XXX. 3. A local code �SCI� is established for use in the 856P, version 4010. A data maintenance action has been submitted for establishment of �SCI- Security Cooperation Implementing Agency� in a future version. 1/1
  856P REF02 N/A
  856P REF03 N/A
  856P REF04 N/A
  856P REF04-01 W9 Special Packaging Instruction Number Use to identify a number, provided by the packaging design activity, that identifies a specific Special Packaging Instruction (SPI). For WAWF, use to provide the Multi Box Pack Indicator. Enter �Yes� in REF04-02 for a serially identified item that is packed across multiple boxes; there must be one, and only one, mark indicator per item. 1/9
  856P REF04-02 N/A
  856P CLD01 N/A
  856P CLD02 N/A
  856P CLD04 N/A
  856P CLD05 N/A
  856P REF01 TN Transaction Reference Number A unique number generated by the original submitter of a pre-defined transaction and assigned to any pre-defined information exchange within the department of defense The transaction reference number retains its identity for the life of the generated transaction Use to indicate the transaction number (i.e., the requisition number). 14/14
  856P REF02 N/A
  856P REF04 N/A
  856P REF04-01 W8 Suffix Use to identify supply transaction partial actions taken on the original document without duplicating or causing loss of identity of the original document number Use with REF01 code TN, if applicable, to cite a suffix associated with the cited requisition (document) number. 1/1
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