Amazon Hazmat Review: Clearing a North America Hazmat Hold

A hazmat review is one of the most common reasons a new or edited listing stalls in Amazon's North America marketplaces. The ASIN is created, inventory is ready to ship — and then the item is placed in a hazmat hold pending documentation. Nothing about the product may look dangerous to a buyer, yet Amazon has flagged something in its materials, category, or attributes that needs to be reviewed before the item can be stored and shipped.

This guide is a focused, step-by-step look at the North America hazmat review workflow specifically: what triggers a review, what the exemption sheet is and when it applies, how the battery/UN 38.3 test summary path works, the mechanics of submitting a Safety Data Sheet (SDS), and the practical steps sellers take to clear a hazmat hold. It is deliberately narrower than the broad programme overview — for the full UK/EU Dangerous Goods programme and the classification taxonomy across marketplaces, read the Amazon Dangerous Goods guide. This is general information about Amazon's processes and market practice, not legal, safety, or transport-law advice; where formal safety or transport thresholds apply, a licensed professional may be required.

What a hazmat review is

In Amazon's North American marketplaces, hazmat (hazardous materials) is the regional term for what UK and EU marketplaces call Dangerous Goods. A hazmat review is the process Amazon uses to decide whether a product's materials require special handling in the fulfilment network, and — if so — what documentation confirms it can be stored and shipped safely.

The key thing to understand is that a hazmat review is triggered by what Amazon believes the product contains, not by how it looks. Amazon assesses materials and components, so a product can enter a review even when the finished item feels completely ordinary. Until the review resolves, the ASIN typically sits in a hazmat hold: it may be un-shippable to fulfilment centres, and existing FBA inventory can be affected.

A hazmat determination applies to a specific ASIN in a specific marketplace. Clearing one product does not clear a similar one, and a US determination does not automatically carry to Canada or Mexico.

What triggers a hazmat review

A review can start before you ship a single unit. Common triggers include:

• Category and keywords — creating a listing in a category historically associated with hazardous materials.
• Product attributes — declaring a battery, a flammable ingredient, an aerosol/pressurised format, or a chemical component in the listing.
• Title and description signals — wording that suggests flammability, pressurisation, or chemical content.
• A material or ingredient change on an existing ASIN that prompts a re-review.
• A manual flag during a routine catalogue or safety review.

Products that frequently enter hazmat review include electronics with lithium-ion or lithium-metal batteries, alcohol-based cosmetics and cleaners, aerosols, powders, strong magnets, adhesives, solvents, and some supplements. Because the trigger is compositional, two visually similar products can be treated differently.

Where the review appears and what Amazon requests

Hazmat notices and the associated document-upload workflow appear inside your account — typically surfaced against the affected ASIN and in the relevant compliance or inventory area of Seller Central. The exact location and wording change over time, so confirm the current path in your account rather than relying on a screenshot from elsewhere.

The documents Amazon commonly requests in a North America hazmat review are:

Amazon decides which document it needs based on how the product is classified. Submitting the wrong type — an SDS when an exemption sheet is required, or vice versa — is one of the most common reasons a hold persists.

The exemption sheet path

An exemption sheet (sometimes described as a battery or hazmat exemption/declaration) is the route for products that have been flagged but are not actually hazardous. It is Amazon's mechanism to confirm that an item does not meet hazmat criteria so the hold can be released.

Practical points sellers keep in mind:

• The exemption sheet must accurately reflect the specific product and its components.
• It is generally supplied or supported by the manufacturer or supplier, so request it early.
• It must match the live listing — product name, model, and configuration should be consistent.
• If the product genuinely does contain a hazardous material, an exemption sheet is not the right document; an SDS or battery test summary will be needed instead.

Choosing the exemption path for a product that is actually hazardous, or the SDS path for one that qualifies for exemption, tends to prolong the review. Identify honestly which category the product falls into before submitting.

The battery and UN 38.3 path

Batteries are one of the most frequently reviewed hazmat categories because of the well-documented risks associated with lithium cells. The review covers not only standalone batteries but any item that contains or ships with one — headphones, power banks, toys, tools, and countless electronics.

For battery products, Amazon commonly wants to understand:

• Battery type — lithium-ion, lithium-metal, or another chemistry.
• Capacity — for example watt-hours or gram content.
• Configuration — contained in equipment, packed with equipment, or shipped alone.

The safety-test evidence for lithium batteries is commonly referred to as a UN 38.3 test summary. This is the document that summarises the transport safety testing for the cell or battery. It is usually held by the cell manufacturer or the product manufacturer, so sellers who source it during onboarding — rather than after a hold lands — clear reviews faster.

SDS submission mechanics

A Safety Data Sheet (SDS) — sometimes still called an MSDS — is the central document for formulated products: liquids, chemicals, aerosols, and powders. It describes composition, hazards, handling requirements, and physical properties such as flash point, which is what Amazon uses to decide how (or whether) the item can be handled in the network.

To reduce avoidable back-and-forth when submitting an SDS:

• ☐ The SDS is current (recently dated) and legible, with no cut-off or missing sections.
• ☐ It matches the exact product and formulation — right variant, right concentration.
• ☐ Product identifiers on the SDS are consistent with the live listing.
• ☐ It is in the language and format expected for the North America marketplace.
• ☐ You upload it through the designated workflow against the flagged ASIN, not by an unrelated route.

The SDS is how Amazon understands the hazard profile. A clear, matching document submitted the first time is the most reliable way to avoid repeated cycles — though the classification and eligibility decision always rests with Amazon.

The hazmat review workflow, step by step

While the exact steps vary by product and situation, a North America hazmat review generally follows this pattern:

1. The ASIN is flagged — automatically at listing creation or edit, or by a manual review — and placed in a hazmat hold.
2. Amazon requests documentation — an SDS, an exemption sheet, or a battery/UN 38.3 test summary, depending on how the product is classified.
3. You prepare the correct document, confirming it matches the exact product and the live listing.
4. You upload it through the designated workflow in your account.
5. Amazon reviews the submission and confirms the classification and fulfilment eligibility, releasing or maintaining the hold accordingly.

Timelines are set by Amazon and are not something a seller — or any third party — can guarantee or accelerate. Submitting complete, accurate, matching documentation on the first attempt is the single most effective way to avoid repeated review cycles. For the broader approval mechanics beyond hazmat, see the ungating guide.

Common reasons a hazmat hold persists

Most stalled hazmat reviews trace back to documentation problems rather than the product itself:

Correcting these before resubmission — and keeping supplier documentation on file in advance — resolves the majority of avoidable holds. Where the problem concerns the listing itself rather than the product's safety status, ASIN and listing appeals may be the appropriate route.

After the hold clears: FBA handling

Clearing a hazmat hold confirms the item can enter the network, but hazmat status still shapes how FBA stores and ships it. Depending on the product and marketplace, expect:

• Additional approval or conditions before inbound shipments are accepted.
• Specific inbound packaging and labelling requirements.
• Storage in designated areas, which can affect storage limits and fees.
• Occasional periods where certain hazmat items cannot be stocked at all.

Some sellers use FBM (merchant-fulfilled) for products that are hard to route through FBA, but merchant fulfilment does not remove the duty to ship hazardous materials lawfully and safely — carrier rules and transport regulation still apply, and a licensed professional may be required for compliant shipping.

Keeping hazmat documentation durable

Hazmat compliance is not a one-time gate. Formulations change, suppliers change, and Amazon updates its own rules. A durable approach treats classification and documentation as part of product onboarding:

• Before a new SKU goes live, confirm its likely hazmat status.
• Obtain the SDS, exemption sheet, or UN 38.3 summary at sourcing.
• Store documentation centrally against the ASIN so it can be produced immediately if a review is triggered.
• Refresh documents when a formulation or supplier changes, and act promptly on any hazmat notice.

Sellers who build this into their sourcing and listing workflow spend far less time firefighting than those who scramble for documents after a hold lands. For how hazmat fits into the wider restriction picture, see the restricted products guide.

ReinstateAMZ governance perspective

A hazmat hold is rarely about a single missing PDF; it usually reveals a gap in how a business captures and maintains product-safety documentation across its catalogue. As an independent governance and enforcement advisory firm — not affiliated with or endorsed by Amazon — ReinstateAMZ approaches hazmat reviews as a documentation and process problem first: what the product actually contains, what evidence exists, whether it is the right document type, and whether it matches the live listing. Where a seller needs structured help assembling and maintaining that evidence, our Amazon Ungating & Regulated Product Compliance service and Compliance & Risk Advisory support that work. Classification and eligibility decisions always rest with Amazon, timelines are set by Amazon, and nothing here is a guarantee of any outcome; this is general information, not legal or safety advice.

Next step

If an ASIN is sitting in a hazmat hold — or you want to identify which products are exposed before a review is triggered — start with a structured, self-serve review using the Governance Snapshot to map your risk and pinpoint the documentation gaps most likely to affect your account.

Related case studies

• Inventory Compliance: Hazmat Documentation — Clearing a hazmat/dangerous-goods documentation hold.
• ASIN Removal: Safety Documentation Gap — A listing removed for a missing safety document.
• FBA Compliance: Packaging Requirements — Meeting FBA packaging rules for regulated goods.
• Safety Documentation Request: Restricted Product — Responding to a safety documentation request on a restricted product.

Sources & official references

• Amazon Seller Central Help — Amazon
• U.S. Consumer Product Safety Commission — CPSC
• gov.uk — UK Government

Frequently asked questions

What is an Amazon hazmat review?

A hazmat review is the process Amazon uses in its North American marketplaces to decide whether a product's materials require special handling in the fulfilment network, and what documentation confirms it can be stored and shipped safely. Hazmat is the North America term for what UK and EU marketplaces call Dangerous Goods. While a product is under review it typically sits in a hazmat hold until the correct documentation is provided.

What triggers a hazmat review on an ASIN?

A review can start before you ship any units. Common triggers include the listing category, product attributes such as a declared battery or flammable ingredient, an aerosol or pressurised format, title and description signals, a material or ingredient change on an existing ASIN, or a manual safety flag. Because the trigger is compositional, two visually similar products can be treated differently, and a determination on one ASIN does not carry to another.

What is an exemption sheet and when do I need one?

An exemption sheet is the document for products that have been flagged but are not actually hazardous. It confirms the item does not meet hazmat criteria so the hold can be released. It must accurately reflect the specific product and match the live listing, and it is generally supplied or supported by the manufacturer. If the product genuinely contains a hazardous material, an exemption sheet is not the right document — an SDS or a battery test summary will be needed instead.

What is a UN 38.3 test summary and when is it required?

A UN 38.3 test summary is the safety-test document commonly requested for products that contain or ship with lithium-ion or lithium-metal batteries. It summarises the transport safety testing for the cell or battery. It is usually held by the cell manufacturer or product manufacturer, so it is best sourced during onboarding rather than after a hold. Make sure the summary matches the exact cell used and is consistent with the battery attributes on your listing.

How do I submit a Safety Data Sheet for a hazmat review?

Upload the SDS through the designated workflow against the flagged ASIN in your account. The SDS should be current, legible, and match the exact product and formulation, with identifiers consistent with the live listing and in the language and format expected for the North America marketplace. Submitting a clear, matching SDS on the first attempt is the most reliable way to avoid repeated review cycles, though the decision always rests with Amazon.

Why won't my hazmat hold clear?

Most stalled holds trace back to documentation rather than the product: submitting the wrong document type, a mismatch between the document and the actual product, missing UN 38.3 battery evidence, illegible or incomplete files, inconsistent details between the listing and the document, or a language or format that does not fit the marketplace. Correcting these before resubmitting resolves most avoidable holds. Where the issue concerns the listing itself, an ASIN or listing appeal may be more appropriate.

How long does a hazmat review take?

Timelines are set by Amazon and vary by product, marketplace, and workload. No seller or third party can guarantee or accelerate a decision. The most reliable way to reduce delay is to submit the correct, complete, matching document — SDS, exemption sheet, or UN 38.3 summary — on the first attempt. Keeping supplier documentation on file in advance helps you respond quickly when a hold is triggered.