Anything with a lithium battery is a dangerous good. That includes most of what you sell.

Key takeaways

• The category is wider than sellers assume. Reporting describes anything containing a lithium cell, pressurised, flammable, chemically reactive or strongly magnetic as capable of entering a dangerous goods review.
• While an ASIN is in review you cannot send new inventory of it to FBA, and stock already at a fulfilment centre may be placed on hold.
• Reported review times are 2 to 5 business days with complete documentation, and 3 to 5 in another account. Incomplete or badly formatted safety data sheets are named as the leading cause of rejection.
• Exemption sheets are only accepted for two categories: battery and battery-powered products, and products confirmed to contain no harmful chemicals. Submitting one outside those is reported to be rejected automatically.
• Reporting states that from 30 April 2026 all FBA-eligible dangerous goods can ship through Amazon's Partnered Carrier programme, removing the need to arrange separate hazmat carriers.

Most sellers first meet this subject when a listing they thought was ordinary gets flagged. Headphones. A cordless tool. A toy with a light in it. The classification is not about how dangerous the product feels; it is about what is inside it and how it behaves in a warehouse or an aircraft hold.

01What actually triggers it

Reporting describes the net as much wider than most sellers assume: anything containing a lithium-ion or lithium-metal cell, anything pressurised, anything flammable, anything chemically reactive, and anything strongly magnetic — even when the product itself feels mundane.

Named examples across sources:

Group	Examples
Lithium battery products	Laptops, cameras, phones, tablets, chargers, power banks, cordless tools, smart-home devices, e-readers, drones, smartwatches, battery-powered toys
Magnetised materials	Speakers, headphones, light meters, some children’s toys
Non-harmful chemicals	Glue and adhesives, spray deodorants, hairspray, hair dye, pest control products
Aerosols and pressurised	Sprays of most kinds
Reactive or flammable	Cleaning chemicals, perfumes, hand sanitiser

Lithium batteries are described as the largest single group, and the reason catches people: anything containing a lithium cell falls into Class 9 dangerous goods, and that captures most modern consumer electronics — including products where the battery is integrated and non-removable.

02What a review costs you

This is the part that makes it urgent rather than administrative.

Once an ASIN enters the review queue:

• You cannot send new inventory of that product to FBA
• Stock already at a fulfilment centre may be placed on hold
• Reported review times: 2 to 5 business days with complete documentation in one account, 3 to 5 in another
• Incomplete safety data sheets, lithium battery verification problems or high queue volumes are described as extending it significantly

Think about that against a fast-moving SKU. A week of blocked inbound plus held stock is a stockout, which means lost rank — see the listing guide on how ranking decays before the stockout even happens — plus the low-inventory-level fee on whatever does sell.

The review is not the cost. The block is.

03The three outcomes

Reporting describes three possible results:

Not a dangerous good. Cleared for standard FBA, no special handling. Described as where most flagged products end up once an exemption sheet or SDS confirms there is no real hazard.

Restricted dangerous. It is hazmat, and Amazon will accept it through FBA provided you are enrolled in the FBA Dangerous Goods programme and the product meets storage and shipping requirements.

Not accepted. Some classes are sellable through FBA only in limited quantities, and some not at all.

04The two documents

Safety Data Sheet (SDS). A 16-section document prepared by the manufacturer describing chemical properties, hazards and handling requirements. Reported requirements: GHS-compliant, dated within five years, in the language of the target marketplace.

Exemption sheet. A simpler declaration, and the rule about it is strict. Reporting states it is accepted for only two categories:

1. Battery and battery-powered products
2. Products confirmed to contain no harmful chemicals

Submitting an exemption sheet for anything outside those two is reported to be rejected. That is a wasted cycle of several business days on a blocked ASIN.

Why documents get rejected. Reporting is specific that many delays occur not because a document is missing but because it does not match Amazon’s formatting or hazard disclosure standards. The frustration sellers describe is rejected documentation rather than absent documentation.

05The lithium battery specifics

Reported requirements for battery products, and the level of detail matters:

• Watt-hours (Wh) are required for all lithium battery products. The calculation is Wh = Voltage (V) × Capacity (Ah)
• Lithium content disclosure
• Alignment with UN 38.3 transport testing — the test summary is commonly requested
• Battery weight — the total weight of all batteries included, not the weight of the device. Reporting notes the current exemption sheet may not include a weight field, but the data remains useful documentation
• Integrated, non-removable batteries must still be correctly declared

Reporting describes battery products frequently entering review because the battery information was incomplete at listing creation — which is an avoidable cause.

06The April 2026 change

Reporting states that from 30 April 2026, all FBA-eligible dangerous goods qualify for Amazon’s Partnered Carrier programme, removing the need to arrange separate hazmat carriers.

That is a meaningful operational simplification for anyone who has been booking specialist carriers. It also interacts with the inbound placement arithmetic, since partnered carrier changes both your freight rate and your placement treatment.

07Importing dangerous goods

Documentation applies at two levels — Amazon’s internal requirements, and international transport and customs regulations. Reported requirements for the second:

• GHS-compliant SDS
• UN-certified packaging certification
• IMO or IATA dangerous goods declarations, with air declarations completed by a certified person
• Labels showing hazard class, UN number and packing group
• An accurate commercial invoice with correct HTS codes — see the classification guide
• Quantity limits under IATA rules for air freight

08What to do

Check classification before sourcing. Seller Central shows ASIN classifications, and the Manage Dangerous Goods Classification dashboard is where documents are uploaded and templates downloaded.

Build SDS requirements into supplier negotiations. Reporting recommends this specifically for private label: costing documentation in from the start is more efficient than scrambling after a flag. A supplier who cannot produce a GHS-compliant SDS is a supplier who will eventually block your ASIN.

Get battery specifications at listing creation. Watt-hours, voltage, capacity, lithium content, UN 38.3 summary. Reporting names incomplete battery information at listing creation as a common cause of review.

Use the right document. Exemption sheet only for the two permitted categories. Anything else needs an SDS.

Complete it fully and check the formatting. Rejections are described as more often about format and hazard disclosure than about absence.

Remember it is marketplace-specific. Dangerous goods approval in one marketplace does not carry to others.

Keep classification stable. Temporary clearance followed by re-flagging weeks later is described as what happens when the underlying classification signal was never addressed.

Frequently asked

What makes a product hazmat on Amazon?

Reporting describes anything containing a lithium cell, pressurised, flammable, chemically reactive or strongly magnetic as capable of entering review — which is far wider than chemicals and captures most consumer electronics.

Can I keep selling while under review?

You cannot send new inventory of that ASIN to FBA, and stock already at a fulfilment centre may be placed on hold. Reported review times are 2 to 5 business days with complete documentation.

When can I use an exemption sheet instead of an SDS?

Reporting states only two categories: battery and battery-powered products, and products confirmed to contain no harmful chemicals. Submitting one outside those is rejected.

Why was my SDS rejected?

Reporting is specific that many rejections are about formatting and hazard disclosure standards rather than the document being missing. A GHS-compliant SDS dated within five years, in the marketplace language, is the standard described.

What battery information does Amazon need?

Watt-hours (voltage multiplied by capacity in amp-hours), lithium content, alignment with UN 38.3 transport testing, and correct declaration even for integrated non-removable batteries.

Do I still need a separate hazmat carrier?

Reporting states that from 30 April 2026 all FBA-eligible dangerous goods qualify for Amazon's Partnered Carrier programme, removing the need to arrange separate hazmat carriers.

Sources

1. Selling hazmat on Amazon FBA: 2026 dangerous goods guide (breadth of the hazmat net; three review outcomes; lithium batteries as the largest group; building SDS costs into supplier negotiations), Seller Essentials accessed 2026-08-08
2. Amazon FBA hazmat and dangerous goods: Partnered Carrier now available (all FBA-eligible dangerous goods qualifying from 30 April 2026; SDS as a 16-section document; watt-hour calculation; battery weight guidance), Seller Essentials accessed 2026-08-08
3. Amazon dangerous goods classification for FBA sellers (inbound blocked and inventory held during review; documents requested; approvals being marketplace-specific), AMZ Dudes accessed 2026-08-08
4. Amazon dangerous goods review explained (2 to 5 business day reviews with complete documentation; rejections driven by formatting and hazard disclosure rather than absence; lithium battery enforcement; re-flagging after temporary clearance), Seller Candy accessed 2026-08-08
5. Amazon FBA dangerous goods: complete hazmat guide 2026 (nine UN hazard classes; 3–5 business day reviews; incomplete SDS as the leading cause of rejection; GHS compliance and five-year dating; UN-certified packaging, IMO/IATA declarations and labelling; IATA air quantity limits), FBA Freight accessed 2026-08-08
6. Hazmat clearance on Amazon (exemption sheets accepted for only two categories and rejected otherwise; Manage Dangerous Goods Classification dashboard and templates; consequences of incomplete or conflicting information), My Amazon Guy accessed 2026-08-08
7. The ultimate Amazon hazmat policy guide for sellers (product groups triggering classification; four business day document review; identifying hazmat via ASIN classifications and the SDS), SellerApp accessed 2026-08-08