Shipping dangerous goods in the United States starts before a package reaches a carrier. Product classification, documentation, packaging and warehouse acceptance all affect how the shipment can be handled.
Businesses often use the terms dangerous goods and hazmat interchangeably. In U.S. transportation, the governing requirements include the Department of Transportation's Hazardous Materials Regulations (HMR) in Title 49 of the Code of Federal Regulations.
This overview explains what shippers and importers should check when selecting a warehouse and arranging domestic transportation in 2026.
1. Know the Nine Hazard Classes
Dangerous goods are commonly grouped into nine classes:
| Class | Description |
|---|---|
| 1 | Explosives |
| 2 | Gases |
| 3 | Flammable liquids |
| 4 | Flammable solids |
| 5 | Oxidizing substances and organic peroxides |
| 6 | Toxic and infectious substances |
| 7 | Radioactive materials |
| 8 | Corrosive substances |
| 9 | Miscellaneous dangerous goods |
These are broad classes, not shipment approvals. Acceptance can depend on a more specific hazard division, UN identification number, quantity, packaging and transport mode. Some commodities are prohibited or restricted under particular carrier services.
2. Accurate Classification Comes Before the Shipping Label
Before tendering regulated goods, the shipper must determine the correct transport classification and applicable requirements. Relevant details commonly include:
- UN identification number, if assigned
- Proper shipping name
- Hazard class or division
- Packing group, when applicable
- Subsidiary hazards, where applicable
- Quantity and packaging configuration
- Intended transportation mode
An SDS can provide useful product safety information, but it should not be treated as the only evidence needed to prepare a regulated shipment. The shipper remains responsible for ensuring correct classification and shipment preparation under the applicable rules.
The FAA also cautions that air carriers may impose restrictions beyond the underlying regulations, so carrier requirements must be checked before offering the shipment.
Sources: FAA — How to Ship Dangerous Goods; UPS — Hazardous Materials Service Definition.
3. Lithium Batteries Deserve a Separate Review
Lithium batteries and battery-powered products are common in consumer electronics and commercial equipment. They can also be regulated in transportation, including when packed with or contained in equipment.
Requirements depend on factors such as battery chemistry, configuration, energy rating, condition, packaging and transportation mode. An air-eligible product is not automatically accepted by every air carrier, and ground service rules should not be assumed to be identical to air requirements.
The FAA provides lithium battery resources, and IATA's 2026 battery guidance addresses lithium metal, lithium-ion and certain sodium-ion batteries under the 67th Edition (2026) Dangerous Goods Regulations. Shippers must use the applicable current rules and carrier restrictions for the actual shipment.
Sources: FAA — Lithium Battery Shipping Guide; IATA — Dangerous Goods Regulations.
4. Warehouse Acceptance Is Separate From Carrier Acceptance
A warehouse that handles ordinary parcels is not necessarily equipped or authorized to receive all categories of dangerous goods. Storage considerations can differ from transportation requirements, which means both need review.
Before sending inventory to a DG-capable facility, a business should be ready to provide a product description, SDS where available, known hazard classification, quantities, packaging and expected storage and order profile.
The warehouse can then assess its own acceptance criteria and determine whether additional information or arrangements are needed before receipt. Do not ship regulated inventory to a facility until receiving approval is confirmed.
5. Packaging and Shipping Documents Depend on the Shipment
Dangerous goods preparation is not one-size-fits-all. Depending on classification and mode, shipments may require particular packaging, markings, labels, shipping papers or declarations. Certain exceptions and quantity provisions can apply only when their conditions are fully satisfied.
A parcel service may also have contract requirements and commodity restrictions beyond the general regulations. For example, UPS states that its fully regulated hazardous materials services generally operate on a contract basis and that carrier acceptance rules and variations must be followed.
Always confirm the specific carrier and service requirements before a regulated package is tendered.
Source: UPS — Hazardous Materials Guide.
6. Questions to Ask a Dangerous Goods 3PL
When selecting a provider, ask practical questions rather than relying on a broad claim of "hazmat capability":
- Can this facility review and accept my specific classification and quantity?
- What product documents must be submitted before receiving?
- Does the service include storage only, or also order picking, packing and outbound handling?
- Which transportation modes and carrier services are available for this shipment?
- Are there special packaging or documentation requirements?
- How will receiving, storage, handling and transport be priced?
The answers should become part of the agreed scope before inventory arrives.
7. Dangerous Goods Services at RUKAI Logistics
RUKAI Logistics offers dangerous goods warehousing, order fulfillment, B2B distribution and shipping coordination services. Our service offering covers all nine dangerous goods classes, but individual products and shipments are subject to a separate acceptance review; coverage does not mean that every UN number, product, route or transport mode is available.
Service discussions can include receiving, inventory management, storage, picking, packing, labeling and outbound shipping arrangements. DG services are quoted individually based on product and operating requirements.
The specialized DG operation is separate from the publicly listed fulfillment facilities. We do not publish the DG warehouse's location or treat all our other facilities as DG-capable.
Frequently Asked Questions
Can dangerous goods be stored in a standard fulfillment warehouse?
Not automatically. Facility suitability depends on the actual product, quantity, regulatory conditions and approved operating scope.
Is an SDS enough to ship dangerous goods?
No. An SDS is useful documentation but may not by itself establish the complete transportation classification, packaging or carrier requirements.
Can lithium batteries ship within the United States?
Certain lithium battery shipments can move using eligible services if the applicable regulatory and carrier conditions are met. Eligibility depends on the precise battery and shipment configuration.
Does RUKAI Logistics support all nine DG classes?
Our stated DG service scope spans the nine hazard classes, subject to product-specific, facility-specific and carrier acceptance review. This is not an unconditional commitment to transport any listed substance.
How can I request a DG quote?
Send your product description, available SDS, known UN number and classification (if applicable), estimated volume, storage requirements and shipping destinations. Our team will review the information and discuss available options.
Final Takeaway
A reliable DG shipping plan begins with correct classification and confirmed acceptance on both the warehouse and transportation sides. Before goods move, verify the documents, packaging, service eligibility and commercial terms for the actual product.
Need a DG warehousing or shipping quote? Visit our Dangerous Goods service page and submit your shipment details for review.
Sources
- FAA — How to Ship Dangerous Goods
- FAA — Lithium Battery Shipping Guide
- IATA — Dangerous Goods Regulations
- UPS — Hazardous Materials Shipping Guide
- UPS — Hazardous Materials Service Definition
This article provides general logistics information, not product-specific regulatory advice. Requirements vary by product, mode, carrier and applicable rules. Images are illustrative.
