Amazon SIOC and Frustration-Free Packaging Certification for Vendors

What the certification settles

Packaging that misses Amazon's expectations for an ASIN is a chargeback risk on your account. Amazon's packaging certification lets you settle the question before the PO ships: you test the package against a standard Amazon developed with ISTA, submit the result, and Amazon records the tier the ASIN qualifies for.

The glossary carries the definitions and the size limits: SIOC (Ships in Own Container), SIPP (Ships in Product Packaging), and Frustration-Free Packaging. This guide covers the decisions those entries leave to you: which tier to aim for, whether you can run the test in your own warehouse or the ASIN needs a lab, which ISTA test sequence applies to your package, and what to check before the next PO goes out.

One note on names before you start: Amazon renamed SIOC to SIPP with the same certification standards, ASINs already certified under SIOC keep their certification, and Amazon's own pages still use both names. This guide says SIOC throughout, because the ISTA protocol your lab will quote still carries that name.

The three tiers, and why SIOC is the one to plan around

Amazon certifies packaging in three tiers, and each tier includes everything below it:

1. Tier 3: Prep Free. The base tier, which SIOC and FFP both include.
2. Tier 2: SIOC. The product travels to the customer in its own packaging, with no overbox added by Amazon.
3. Tier 1: FFP. Everything in SIOC and Prep Free, plus Amazon's requirements on recyclable materials and easy opening.

Because the tiers stack, SIOC is the tier to plan your testing around. It is the tier the ISTA drop and vibration protocol certifies, and an FFP item that stops passing SIOC can't hold FFP either. FFP's extra conditions are mostly about materials, so a package built around a blister pack, a plastic insert, or a welded clam shell can pass SIOC and still fail FFP. If that describes your packaging, certify SIOC first and treat FFP as a separate redesign with your packaging supplier.

Before you book any testing, compare the package against the SIOC format and size limits in the glossary entry, because a package outside those limits won't qualify however well it survives a drop.

Self-test or lab test: how to tell which applies to an ASIN

Amazon's packaging testing page splits ASINs by two questions: is the product fragile, and does the package weigh under 50 lb? The answers send each ASIN down one of these paths.

• Non-fragile, rigid packaging, under 50 lb. You can self-test. Amazon supplies two instructional videos, one for the drop test and one for the evaluation. You run the drop sequence as the guidelines describe, evaluate the product with Amazon's template, and submit the completed Amazon Vendor drop test report template.
• Flexible packaging (bags). Amazon now accepts items shipped in bags for certification, with similar weight and condition limits. Read the current flexible-packaging guidance before assuming the rigid-box process carries over.
• Fragile, under 50 lb. Self-testing is unavailable. You can send the product to the Amazon Packaging Lab, which tests it to ISTA 6A, or to an outside lab.
• Anything else. Use a company from Amazon's APASS network, which Amazon describes as companies and labs that can help test, design, and supply packaging, or search ISTA's Find a Lab tool for a lab certified for the ISTA 6-Amazon SIOC or Overboxing test methods.

The fragile call also sets how many samples you need. ISTA's overview of the protocol defines fragile items as those that easily break or could leak in distribution, and that includes anything containing glass, ceramic, porcelain, or clay, along with liquids, semi-liquids, and solids that can turn liquid at temperatures above 70°F. A fragile item needs five samples and every one of them must pass, while a non-fragile item needs one. TVs and monitors count as non-fragile under the protocol and have their own test types, G and H in the table below. ISTA requires the procedure to be run once with the required samples and recommends running it five or more times with fresh samples each time.

What the ISTA-6 Amazon test does to your package

ISTA developed the 6-AMAZON.COM-SIOC protocol with Amazon to simulate the trip from your dock through an Amazon fulfillment center to the customer's door by parcel or LTL. It sorts packaged products into eight test types using four criteria: how Amazon ships the item outbound, how the fulfillment center handles it, what it weighs, and whether the product is a TV or monitor.

Girth is length plus twice the sum of width and height. Amazon ships an item LTL when it weighs over 150 lb, has any dimension over 108 inches, has a girth over 165 inches, is palletized, or Amazon specifies it.

A standard parcel item under 50 lb is Type A, and its sequence runs in this order:

1. Atmospheric preconditioning. Twelve hours at lab ambient temperature and humidity. Controlled conditioning at a chosen temperature and humidity is optional.
2. Free-fall drops. Nine drops, with the height set by the package's weight.
3. Random vibration. Run with and without a top load.
4. More free-fall drops. Eight drops, one of them onto a hazard.
5. Shape-specific shocks. Elongated and flat packages also get a 9-inch rotational edge drop and a full rotational flat drop, then a hazard box dropped onto them from 16 inches: a bridge impact for elongated packages, a concentrated edge impact for flat ones.
6. Leak test. Eight hours, for liquids only.

The protocol defines elongated as a longest side of 36 inches or more with both other sides at 20 percent of it or less. Flat means a shortest side of 8 inches or less, a next side at least four times that, and a volume of 800 cubic inches or more. A package that is both gets tested as elongated.

Heavier parcel types add load tests to the sequence. Types B and C hold a vertical compression load for one hour, add a clamping simulation for any axis 24 inches wide or more and under 75, and add a 22-degree tip test for tall packages. Type C skips free-fall drops altogether and uses 9-inch rotational flat and edge drops plus inclined or horizontal impacts at 48 inches per second. LTL Type D caps its drops at 18 inches in the first round and 32 inches in the second.

Three requirements in the overview decide whether a passing report means anything:

• Agree on pass and fail first. The shipper, the manufacturer, Amazon, or other stakeholders set what counts as product damage, how much damage is acceptable, how product condition gets checked after the test, and what package condition is acceptable, all before testing starts.
• Test production items. Hand-made samples, CAD-generated one-offs, and short runs usually don't represent production well enough to give a meaningful result.
• Document the package. ISTA warns that seemingly insignificant differences in configuration, materials, or construction can change the result, and strongly recommends photos alongside the written description. Product shipped to a lab has to arrive overpacked or be repackaged in new packaging at the lab.

The certification path in Vendor Central

Once you know your tier, your test path, and your test type, the sequence from test to status runs like this:

1. Run the test. Self-test with Amazon's videos and template, or book the Amazon Packaging Lab, an APASS company, or an ISTA-certified lab.
2. Upload the report to Vendor Central. Vendors manage SIOC enrollment and certification through the Product Prep and Packaging Dashboard.
3. Wait for Amazon to verify the report. Enrollment follows once Amazon certifies the ASIN.
4. Confirm the ASIN's status on the dashboard. Do this before the next PO for that ASIN ships, so you never ship on a certification Amazon hasn't recorded.

If you came from Seller Central: most of what ranks for "amazon sipp" is written for FBA sellers and describes Seller Central enrollment and per-unit FBA fee discounts. A vendor selling to Amazon on purchase orders pays no FBA fulfillment fees, so that payoff doesn't exist in Vendor Central. The certification standard carries over, but the money shows up in prep handling and chargebacks, and you enroll through Vendor Central.

Why packaging belongs on your chargeback watchlist

Amazon lists the vendor benefits of certified packaging as fewer or no prep chargebacks, the removal of Ships in Product Packaging chargebacks, and potential savings on packaging cost and inbound freight. For most vendors the chargebacks are the part with a number attached, and the chargebacks entry shows where they post. If a packaging charge looks wrong for an ASIN you certified, the dispute guide walks through contesting it.

Net PPM leaves chargebacks out, so packaging charges never show up in it; to see what a package is costing you, pull InsightLeap's product-level Net PPM for the ASIN and set its packaging chargebacks against that figure.

Checklist: before the next PO ships

• Tier status. Every ASIN on the PO shows the tier you expect on the Product Prep and Packaging Dashboard.
• Packaging changes. Nothing about the carton, insert, or supplier has changed since the test. If something has, compare it against the documentation and photos from the test, and plan a retest when the construction differs.
• Fragile call. Anything containing glass, ceramic, porcelain, clay, or liquid, or a solid that can turn liquid above 70°F, is classed fragile, with five samples and no self-test.
• Test type. Weight, girth, the elongated and flat definitions, and outbound shipment method all point to the same type letter on the lab's quote.
• Production samples. The units you send to the lab came off the production line, and the damage criteria were agreed before testing began.
• Chargeback check. No packaging or prep chargebacks are posting on ASINs you consider certified. If an FFP ASIN starts drawing them, audit SIOC and Prep Free first, because FFP can't hold without them.

Run that list per ASIN when a new item launches, and again whenever the packaging or its supplier changes.

Related reading

• SIOC (Ships in Own Container): format and size limits for Tier 2.
• SIPP (Ships in Product Packaging): the rename and the seller-versus-vendor split.
• Frustration-Free Packaging: the Tier 1 requirements.
• Chargebacks: where compliance deductions show up in Vendor Central.
• Amazon chargebacks: the wider guide to vendor chargebacks.