An air waybill is the contract between a shipper and an airline for carrying cargo by air, and it doubles as the airline’s receipt confirming it has taken custody of the goods. It is non-negotiable, so unlike an ocean bill of lading it cannot be endorsed or transferred to change who owns the cargo in transit. Every international air shipment travels with one, and the format is standardized worldwide, whether the freight moves on a regional turboprop or an intercontinental freighter. Getting the fields right is what keeps a shipment moving through customs, billed correctly, and eligible for a clean damage claim if something goes wrong.
What Goes on the Form
The data on an air waybill falls into a few categories: who is shipping, who is receiving, what the cargo is, and how it should be handled. Errors in any of these can stall a shipment at customs or trigger penalty charges.
- Shipper and consignee details: full legal name, street address, city, postal code, and phone number for both parties. Many countries treat complete party information as a customs admission requirement.
- Airport codes: three-letter IATA codes identify the origin, destination, and any intermediate hub in the routing fields. LAX for Los Angeles, CDG for Paris, PVG for Shanghai.
- Description of goods: a plain-language description plus any commodity or rate-class codes the carrier uses for pricing.
- Piece count, weight, and dimensions: total number of packages, gross weight in kilograms (pounds for domestic U.S. shipments), and the length, width, and height of each piece. Carriers compare actual weight against volumetric weight and bill whichever is higher, so accurate dimensions matter as much as the scale reading.
- Special handling codes: flags for perishables, live animals, temperature-controlled pharmaceuticals, or dangerous goods that need specific packaging, ventilation, or segregation.
- HS codes: the six-digit Harmonized System code classifying the commodity for customs. Many countries and carriers now require it before they will process the shipment at all. If the cargo contains multiple commodity types, each HS code goes in the description field.
- Declared values: two separate fields. “Declared Value for Carriage” sets the ceiling on the carrier’s liability if cargo is lost or damaged. “Declared Value for Customs” tells border authorities how to assess duties and taxes on arrival.
The shipper supplies most of this data and is legally responsible for its accuracy. IATA Resolution 600a, which governs the air waybill format worldwide, puts the correctness of every cargo data point on the shipper.
Master Air Waybill vs. House Air Waybill
Two types of air waybills exist, and confusing them is a common source of trouble. A Master Air Waybill (MAWB) is the contract between the airline and a freight forwarder. A House Air Waybill (HAWB) is the contract between the freight forwarder and the individual shipper. If you book through a forwarder rather than directly with an airline, both documents exist for your shipment.
A forwarder collects cargo from multiple shippers, consolidates it into one larger load, and tenders that load to the airline under a single MAWB. Each shipper’s portion gets its own HAWB underneath. The MAWB is the umbrella; each HAWB tags one shipper’s boxes within it.
Liability follows the same structure. Under the HAWB, the forwarder is responsible to the shipper from pickup to delivery. Under the MAWB, the airline is responsible to the forwarder while the cargo is in the airline’s custody. If freight is damaged in flight, the shipper’s claim goes to the forwarder first, and the forwarder pursues recovery from the airline. Any mismatch between the MAWB and the underlying HAWBs can trigger customs delays, inspections, or outright rejection.
The Waybill Number and the Copies
Every air waybill carries an eleven-digit identification number printed in the upper corners. The first three digits are the airline’s IATA prefix code (001 is American Airlines, 014 is Air Canada). The next seven digits are a unique serial number for the shipment. The final digit is a check digit calculated from the serial number using a modulus-7 formula, which lets warehouse systems catch transposition errors on manual entry.
A standard paper air waybill set has at least eight copies, color-coded to different roles. Three originals do the legal work:
- Original 1 (green) stays with the issuing carrier for accounting. The shipper’s signature on this copy is the carrier’s evidence that a valid contract exists.
- Original 2 (pink) travels physically with the cargo and is handed to the consignee at the destination warehouse.
- Original 3 (blue) goes to the shipper immediately after the carrier accepts the goods. It is the shipper’s proof of the contract and receipt of the cargo.
Copy 4 (yellow) is the delivery receipt, signed by the consignee to confirm arrival. Copies 5 through 8 are used by the issuing agent, carriers, and forwarders for internal routing, customs filings, and administrative needs. Carriers can add up to five more copies if operations require them.
Two signature blocks at the bottom of the form require the shipper (or their agent) and the carrier’s representative to sign. Those signatures confirm the data is correct and that the carrier has formally accepted the goods.
How to Fill It Out
Most shippers never touch a blank air waybill. Instead, they complete a Shipper’s Letter of Instruction (SLI), which the freight forwarder uses to populate the waybill fields. The SLI authorizes the forwarder to prepare and sign the waybill on the shipper’s behalf and collects the party details, service level, declared values, export compliance data such as Schedule B or HTS numbers, and a hazardous materials declaration. Signing the SLI certifies that the information is true and correct, with civil and criminal penalties possible for false statements.
If you are filling the waybill out yourself, the sequence follows the data list above. The eleven-digit number goes in the upper corners. Shipper and consignee information fills the top section. Airport codes go in the “Airport of Departure” and “Airport of Destination” boxes. The description, piece count, weight, and dimensions fill the center. Special handling codes and HS codes go in the cargo description area. Declared values for carriage and customs each have a dedicated field. The “Nature and Quantity of Goods” line at the bottom of the cargo section is the summary customs inspectors read during clearance.
Freight forwarders typically charge between $25 and $200 per shipment to prepare and file the waybill, depending on complexity and routing.
Electronic Air Waybills
The electronic air waybill (e-AWB) replaces the paper document with a digital record transmitted between shipper, forwarder, and airline. The Montreal Convention explicitly permits this. Article 4 states that “any other means which preserves a record of the carriage to be performed may be substituted for the delivery of an air waybill.”1International Air Transport Association. Convention for the Unification of Certain Rules for International Carriage by Air IATA Resolution 672 provides the framework for member airlines to accept e-AWBs, and member airlines automatically cosign the multilateral agreement enabling their use.2Cross-Border Paperless Trade Database. Air Waybill
Adoption sits at roughly 85 percent of global air cargo shipments. Paper documents still appear on trade lanes where destination countries have not approved electronic alternatives, or where the cargo type (certain dangerous goods, for instance) requires a physical signature. When e-AWB is used, data transmits directly to the airline’s cargo system, cutting manual entry errors and speeding up terminal processing. The shipper’s electronic record serves the same legal purpose as the blue paper original.
Tracking a Shipment
Once the carrier accepts the freight and scans the eleven-digit number into its manifest system, tracking goes live. Entering that number on the airline’s cargo website or the forwarder’s portal returns status updates at each milestone: warehouse acceptance, flight departure, arrival at destination, and release to the consignee. For consolidated shipments, the MAWB number tracks the entire pallet through the airline’s system, while the HAWB number tracks the individual shipper’s portion through the forwarder’s system. The process closes when the consignee signs the yellow delivery receipt.
How It Differs From a Bill of Lading
Shippers who move goods by both ocean and air sometimes assume the documents work the same way. They do not. The critical difference is negotiability. An ocean bill of lading is a document of title: whoever holds it can claim ownership of the goods, and it can be endorsed and transferred to a new party mid-voyage. An air waybill carries no title at all. It is a receipt and a transport contract. Only the consignee named on the waybill can collect the cargo at destination.
That distinction matters for trade finance. Banks routinely accept ocean bills of lading as collateral because they represent ownership. Air waybills cannot serve that function. If a deal requires a letter of credit backed by shipping documents, the financing terms will differ depending on whether the goods move by sea or air.
Liability Limits and Declared Value
The Montreal Convention caps airline liability for cargo that is destroyed, lost, damaged, or delayed. As of December 28, 2024, the limit rose from 22 to 26 Special Drawing Rights (SDR) per kilogram, roughly $35 at current exchange rates.3International Civil Aviation Organization. International Air Travel Liability Limits Set to Increase, Enhancing Customer Compensation SDRs are a basket currency maintained by the International Monetary Fund, so the dollar equivalent fluctuates.
That 26 SDR figure is the default cap. Shippers can raise it by entering a higher amount in the “Declared Value for Carriage” field and paying the carrier’s excess valuation surcharge. Without that declaration, the math works against high-value cargo quickly: 100 kilograms of electronics worth $50,000 would be capped at roughly $3,500 in carrier liability. Separate cargo insurance is the standard solution, and most forwarders offer it at booking. The blue original, or its electronic equivalent, is the shipper’s key piece of evidence when filing a damage claim, so keep it accessible.
Penalties for Incorrect Documentation
Errors on a waybill range from inconvenient to expensive. Mismatches between the waybill description and the actual cargo trigger customs holds, inspections, and clearance delays, all of which run up warehouse storage fees and blow through delivery windows.
The stakes escalate when dangerous goods are involved. Shipping hazardous materials by air without proper declaration on the waybill violates federal hazardous materials transportation law. Under 49 U.S.C. ยง 46312, a person who knowingly violates hazardous materials air transport regulations faces criminal fines and up to five years of imprisonment.4Office of the Law Revision Counsel. 49 USC 46312 – Transporting Hazardous Material Civil penalties can reach $102,348 per violation, jumping to $238,809 per violation if the violation causes death, serious injury, or substantial property destruction.5eCFR. 49 CFR Part 209 Subpart B – Hazardous Materials Penalties Each day a continuing violation persists counts as a separate offense.
Even for non-hazardous cargo, an inaccurate weight declaration can result in the carrier rejecting the shipment at the ramp or adding penalty surcharges. Airlines balance flight loads based on waybill data, and weight discrepancies raise safety concerns. Weigh and measure every piece before completing the waybill, and have someone who knows the cargo review the goods description and HS codes before the document is submitted.