How To Apply Surface Transportation Only Marking For U.S. Road And Rail Shipments

Surface Transportation Only Marking A dangerous-goods package marking used to communicate the regulatory information represented by 'Surface Transportation Only Marking', subject to the applicable mode and regulations.

Applying a surface-only marking correctly is a practical task for packers, compliance teams and dock staff. The marking must be clear, placed where carriers will see it, and accompanied by matching documentation and booking restrictions. Below are step-by-step actions and operational controls that typically work for U.S. highway and rail shipments subject to 49 CFR.

Step 1 — Confirm Packaging Suitability

Before applying any marking, the shipper must evaluate whether the chosen packaging meets the performance standards required by the intended mode. If packaging lacks required air tests or exceeds air quantity limits, it should be designated surface-only. Maintain packaging certificates, test reports and internal checklists so the decision is defensible during audits.

Step 2 — Apply The Marking On The Package

Place the surface-only text on the principal display panel, close to the product name and UN number if present. Use contrasting ink, a legible font size and permanent application so the marking remains readable through normal handling and weather exposure. If multiple panels are used for handling, mark each principal panel to ensure visibility.

• Text format: Use a concise statement that the carrier recognizes; avoid ambiguous phrasing.
• Durability: Use permanent labels or printed panels resistant to scuffing and moisture.
• Multiple panels: Mark on at least two opposing panels for pallets and large boxes.

Step 3 — Document The Restriction

Record the surface-only status on the shipping paper, bill of lading, and in any electronic shipping system. Include the UN number, proper shipping name, and an explicit notation such as "Surface Transportation Only — Not For Air". Make sure the carrier booking and any EDI messages carry the same restriction so automated acceptance systems block improper routing.

Step 4 — Train Acceptance And Routing Teams

Acceptance clerks, dock supervisors and routing planners must understand that surface-only marking prohibits air carriage. Provide a quick-reference cheat sheet showing how to read the marking and how to check booking modes. Implement a refusal procedure for shipments presented for air carriage with a surface-only marking: return the shipment to the consignor or require re-packaging and amended documentation.

Step 5 — Use System Controls

• Order-management blocks: Configure systems to auto-block air-class bookings when an item is flagged surface-only.
• Carrier integration: Leverage carrier APIs to validate mode acceptance before tender.
• Audit trails: Keep electronic logs of who applied the marking, who accepted the shipment, and routing decisions to demonstrate due diligence.

Common Operational Problems And How To Avoid Them

Problem areas include inconsistent application of marking, failure to note the restriction in carrier bookings, and confusion when shipments transit multiple partners. Avoid these by standardizing label templates, requiring a mandatory field in the order entry for mode restrictions, and confirming with any onward carriers that they accept surface-only consignments on their planned route.

Inspection And Recordkeeping

Retention of packing certifications, shipping papers and photographs of applied markings helps during inspections or incident investigations. Regulators and carriers may request to see the packaging performance data that justified the surface-only designation — having those documents organized reduces disruption and demonstrates control over hazardous materials compliance.

In short, the Surface Transportation Only Marking should be applied deliberately: verify packaging capabilities, mark packages where carriers will see them, document the restriction on shipping papers and bookings, train acceptance staff, and use system controls to prevent improper modal routing. These steps reduce safety risk and regulatory exposure while keeping freight moving on approved surface routes.