In order to be AAR-approved, dunnage air bags must pass a specific AAR test protocol, and then keep up with it: verification expires every three years unless the manufacturer re-submits.
A bag that passed testing four or five years ago can still say “AAR approved” today even if the verification has since lapsed. An unverified bag can still inflate, still fill a void, and still look the part right up until it fails under the shock loads rail transport puts on cargo.
Here’s what buyers should check before giving a dunnage air bag order the green light.
What “AAR-Approved” Really Means
The Association of American Railroads doesn’t hand out a blanket seal of approval to entire product categories. Verification happens bag by bag, through a specific testing program called the Product Performance Profile for Pneumatic Dunnage, laid out in AAR General Information Bulletin No. 9. A dunnage bag has to complete that testing and be verified at a specific level before it can get the AAR-approved label.
Since 2020, manufacturers whose bags pass have been issued an AAR ID number, which is meant to appear on the bag or its label. If a bag doesn’t have one, that’s not automatically disqualifying, since the requirement to print it is voluntary. But it does mean you need to go check the source list.
Verification Expires. Plan Around That.
AAR verification isn’t permanent. Pneumatic dunnage that passes testing has to be re-verified every three years, and any changes to the bag’s materials or how it’s manufactured can trigger more testing. Miss the re-verification window, and the existing approval gets revoked, whether or not anyone updates the label to reflect it.
That means a bag your vendor sold you as AAR-approved two years ago could be sitting outside compliance today, unless someone is actively tracking verification dates.
Six Things to Confirm Before You Buy
Run any dunnage air bag order through this list before it ships:
- The AAR ID number, if the manufacturer prints one. No number doesn’t automatically mean no verification, but it does mean you check the list directly.
- The verification level matches your application. A bag verified for one load configuration or void size isn’t automatically cleared for another.
- The verification date is current. Anything past the three-year mark has lapsed.
- The material and valve construction match what was actually tested. A manufacturer swapping film thickness or valve type without re-verifying is the failure General Information Bulletin No. 9 exists to catch.
- Your vendor can produce documentation without a delay.
- The bag is rated for your shipping mode.
Check the List Yourself
AAR publishes the PPPPD Product Verification List, showing manufacturer, verification level, and the date each product was last tested.
Check what your vendor told you against what the list shows. If the vendor said the bag is currently verified and the list shows an expired date, or no listing at all, you’re not looking at an AAR-approved bag.
Match the Level to the Mode, Not Just the Gap
A bag can fit your void perfectly and still not be cleared for the mode it’s shipping in. Rail shipments generally require a higher bar than road freight, since boxcar transit introduces longitudinal shock during braking and coupling that most over-the-road hauls never encounter.
Intermodal and ocean freight have their own issues: multiple handling environments, cumulative wear, and in the case of ocean containers, sustained moisture exposure that paper dunnage handles poorly. The safest approach is sizing to the worst-case conditions a load could face.
If your freight moves through more than one mode on its way to the customer, the bag needs to be rated for the toughest leg of that journey.
Be Skeptical of “AAR Approved” With Nothing Behind It
If a listing says “AAR approved” and stops there, ask for the specifics: level, ID number, verification date. A vendor selling a verified bag should have those details on hand, since it’s the paperwork tied to that specific product. Hesitation or vague answers are red flags. Confirm what they tell you against the AAR list itself before you order.
Why Buyers Rely on Sunrise
Sunrise Manufacturing’s Vice President of Dunnage has spent more than a decade on the AAR Damage Prevention Committee. Sunrise has also participated in multiple AAR Damage Prevention & Freight Claim Conferences. That ongoing engagement has helped us ensure our air bags, honeycomb panels, and blocking and bracing products get built to AAR’s compression and performance standards.
Ready to verify what’s protecting your freight? Talk to Sunrise about a load plan built on AAR-verified dunnage, matched to your shipping mode from the start.
