Shipping Dry Ice Compliance Steps to Avoid Rejection

Shipping Dry Ice Compliance Steps at a Glance

You need to move a dry ice shipment without having it rejected at the carrier counter or stopped during an inspection. These shipping dry ice compliance steps provide a practical workflow for deciding which rules apply, selecting safe packaging, marking and labeling the box, completing air documents, and checking employee training.

Dry ice must not be treated as standard cargo. Even when a domestic ground exception applies, the package must release carbon dioxide gas safely. U.S. air shipments require review under 49 CFR, while applicable domestic and international air consignments must also meet the current IATA Dangerous Goods Regulations.

Step 1: Identify Your Mode and Regulatory Applicability

Start with the complete route, not just the service named on the order. A shipment collected by truck may still enter an aircraft network. Confirm whether it will move by highway, rail, air, vessel, or more than one mode. Also identify the destination country and the rules the carrier will apply.

Create separate workflows for domestic ground and air shipments. Do not let employees apply a ground exception to a package that might be tendered for air transport. Under 49 CFR § 173.217 published by Cornell Law School, dry ice is Carbon dioxide, solid, UN 1845, Class 9. Domestic highway or rail shipments used to cool non-hazardous material are excepted from many hazardous materials requirements when the packaging safely vents gas, while air shipments face additional conditions.

Next, classify the refrigerated contents. If the contents are regulated dangerous goods, their classification can change the packaging and documentation duties for the entire consignment. Calling the contents “samples” or “products” does not make them non-hazardous.

Record the selected mode, applicable rule set, carrier service, dry ice quantity, and contents classification before packing begins. That record gives packers and document preparers one approved basis for the shipment.

Step 2: Engineer Packaging for Pressure Release and Product Protection

Dry ice changes directly from a solid into carbon dioxide gas, so a sealed package can build dangerous internal pressure. Begin the packaging decision with venting: the completed package must allow gas to escape without losing its ability to contain and protect the refrigerated contents.

Do not tape every seam of an insulated container or place dry ice in an airtight receptacle. Use packaging intended for dry ice service and follow its closure instructions. The outer package must remain strong enough for normal transport handling.

Secure inner containers so they cannot shift as the dry ice sublimates. Dividers, inserts, or suitable cushioning should prevent movement and contact damage without blocking the vent path.

Liquid contents require another level of review. Confirm whether the applicable instruction requires leakproof primary or secondary containment, absorbent material, and pressure-tested receptacles. Absorbent material must be sufficient for the liquid that could escape without blocking the route used to vent carbon dioxide from the outer package.

Before closing the shipment, compare the assembly with the packaging manufacturer’s instructions and your approved packing procedure. Check the container type, cushioning, closure method, vent path, and dry ice mass. A compliant label cannot correct an unsafe package.

Step 3: Apply Required Markings and the Class 9 Hazard Label

Mark the package only after confirming the mode and exception status. For a regulated air shipment, the exterior information normally includes the proper shipping name “Dry ice” or “Carbon dioxide, solid,” UN 1845, and the net mass of dry ice in kilograms. Add the shipper’s and consignee’s full names and physical addresses where required.

The stated net mass is the dry ice placed in the package, not the gross weight of the box, product, insulation, or cushioning. Verify it during packing and make it match the quantity on the air waybill and any other dangerous goods document.

Apply the Class 9 miscellaneous dangerous goods label when the applicable air or vessel rules require it. Temp Control Pack’s PI 954 compliance summary describes the Class 9 diamond and gives the air waybill sequence as “UN 1845, Dry ice, 9,” followed by the package count and net dry ice quantity.

A domestic-air exception may remove the Class 9 label and shipping-paper requirement when no more than 2.5 kg of dry ice cools non-hazardous contents, but required package markings and safe venting still apply. Verify carrier acceptance before tendering the shipment. Do not extend this exception to international air shipments or dangerous contents without checking the governing rules.

If an overpack hides the marks or labels on enclosed packages, reproduce the required information outside and mark it “OVERPACK.” Inspect label condition and visibility after assembly.

Step 4: Format Shipping Papers and Air Waybill Declarations Accurately

For air transport, enter the dry ice information in the air waybill’s “Nature and Quantity of Goods” field or the carrier’s electronic equivalent. A standard entry follows this order: “UN 1845, Dry ice, 9, [number of packages] x [net quantity per package] kg.” Use the quantity and package count physically tendered.

A full Shipper’s Declaration is generally not required when dry ice refrigerates non-dangerous goods and the applicable conditions are met. If the refrigerated material is dangerous goods requiring a declaration, document both that material and the dry ice as required.

Compare the documents with the completed package before release. Confirm that the shipping name, UN number, hazard class, package count, and net dry ice mass agree everywhere. Verify addresses against the booking and remove obsolete marks or labels from reused outer packaging.

Airlines and integrators may use their own acceptance checklist or booking system. Pre-clear unusual quantities, overpacks, dangerous refrigerated contents, or routes with interline transfers. TMGI’s audit-ready shipping controls can help structure the final outbound check.

Step 5: Verify Function-Specific Training and Carrier-Specific Rules

The final gate is the person doing the work. Verify training before an employee classifies contents, selects packaging, applies marks or labels, signs documents, or offers a package to a carrier. General awareness alone does not establish competence for each assigned shipping function.

Under 49 CFR § 172.704 in the Electronic Code of Federal Regulations, new hazmat employees must complete required training within 90 days and may work during that period only under direct supervision. DOT recurrent training is required at least every three years. Retain the employer certification and training records for inspection, and separately monitor current IATA recurrent-training requirements for air functions.

Carrier approval is a separate check. Operators can impose booking procedures, quantity limits, service restrictions, and contract requirements stricter than the baseline regulation. Review the carrier’s current dry ice tariff or service guide for the origin, destination, contents, and quantity. TMGI’s guide to dry ice carrier rules and quantity limits provides additional operational checks.

Periodic observation of actual packing and documentation work can expose gaps before a carrier refuses a package or an inspector requests records. TMGI’s general hazmat compliance audits review areas such as shipping papers, packaging, marking, labeling, training records, and written procedures to identify potential violations and corrective actions.

Build a Compliant Dry Ice Shipping Process

For employees who package, document, or tender these shipments, TMGI offers a DOT–ICAO/IATA Dry Ice Hazardous Material Training Course as dedicated on-site training or a live web seminar. To discuss training or a general compliance audit, call TMGI at (866)-572-8644 or email sales@tmgihazmat.com.