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Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

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Tools

X12 853 — Routing and Carrier Instruction

The 853 sends a supplier or carrier the routing instructions: chosen carrier, mode, route, equipment, conditions. It does not authorize transport — it describes its parameters.

Purpose

The 853 is used by a buyer (typically a retailer or industrial) to tell a supplier how to ship an order whose content has already been accepted: which carrier to use, what mode (LTL, TL, parcel, intermodal), service level, pickup point, and destination. The 853 may reference several POs if they consolidate on a single load.

The 853 is an instruction vehicle, not a transport transaction in itself: the actual transport order remains the 204 when the shipper issues to the carrier. The 853 carries the routing policy (routing guide), not the shipment event.

Envelope structure

The 853 travels in a functional group RI (Routing Instruction). Didactic example in release 004010:

x12 example-853.x12 
ISA*00*          *00*          *ZZ*ACMERETAIL    *ZZ*ACMEVENDOR    *260514*0930*U*00401*000000853*0*P*>~
GS*RI*ACMERETAIL*ACMEVENDOR*20260514*0930*1*X*004010~
ST*853*0001~
BRI*00*RI-2026-0001*20260514~
N1*BY*ACME RETAIL CO*92*0001~
N1*VN*ACME VENDOR INC*92*V-9087~
N1*CA*ACME CARRIER*92*CA-077~
N7*TR-22345**40000~
S5*1*LD~
LX*1~
L11*PO78901*PO~
SE*10*0001~
GE*1*1~
IEA*1*000000853~

The BRI (Beginning Segment for Routing and Carrier Instruction) opens the transaction. The N1 segments identify buyer, supplier, and chosen carrier. The N7 (Equipment Details) describes the equipment (trailer, container, max weight). The S5 (Stop Off Details) sequences stops. The LX introduces load segments, and L11 binds related POs.

Common segments

  • Header — ST, BRI (Beginning Segment for Routing and Carrier Instruction), DTM (pickup date).
  • Parties — N1 loop (BY, VN, CA = Carrier, SH = Ship From, CN = Consignee) with N3/N4/PER.
  • Equipment / mode — N7 (Equipment Details), M7 (Seal Numbers), NTE.
  • Stop offs — S5 loop with G62 (dates), NTE.
  • Routing per item / load — LX loop, L5 (Description, Marks and Numbers), L11 for related PO and BOL.
  • Summary — SE.

Common pitfalls

  • Missing SCAC: the chosen carrier SCAC sits in N104 with qualifier 2; without SCAC, the supplier cannot book.
  • Confusion with the 204: the 853 instructs routing; the 204 books the transport. Issue an 853 then wait for the supplier's 204 in a drop-ship flow.
  • Retail networks: large US chains publish their routing guide separately (PDF + portal); the 853 covers cases off the standard guide, not its redistribution.

Documentation

The code 853 and the name Routing and Carrier Instruction are public and listed on x12.org/products/transaction-sets. Retailer-specific routing guides (Walmart, Target…) are distributed outside EDI.