Guide · compliance
A plate is
not a certification.
Most of what gets sold as 'UN rated used totes' would not survive five minutes of scrutiny. This page sets out what the rules actually require, so you can tell the difference before a shipment rather than after one.

The short answer
To ship regulated liquid in an IBC, three things must be true at once: a valid UN marking (typically 31HA1/Y), a current retest — leakproofness every 2.5 years, full requalification every 5 — and any repair performed by a registered reconditioner. As the offeror you carry legal responsibility for verifying all three. None of this applies to storage on your own property.
From the yard


First question
Does any of this apply to you?
A surprising number of people worry about UN compliance for containers that will never leave their own yard.
You need a compliant container when
- The tote will travel on a public road containing a regulated material
- You are offering the shipment to a carrier
- Your customer's receiving requirements demand a UN-marked package
- The material is classified hazardous under 49 CFR
You don’t when
- The tote stays on your own property
- You're storing water, fertilizer or non-regulated chemistry
- The tote is used for irrigation, washout or jobsite water
- The container is empty and being moved for reconditioning
Requirements
What the rules say
Simplified but not distorted. Read the actual sections before you make a compliance decision.
| Reference | Covers | Practical effect |
|---|---|---|
| 49 CFR 178.700–819 | IBC design qualification and testing | Defines the design types and the tests a new IBC must pass to carry a UN marking |
| 49 CFR 180.350–352 | Periodic retest, inspection and repair of IBCs | Leakproofness every 2.5 years, full requalification every 5, test date marked on the unit |
| 49 CFR 173.35 | Use of IBCs for hazardous materials | Authorises IBCs for specified materials and sets conditions of use |
| 49 CFR 107.501+ | Registration of packaging reconditioners and retesters | Only a registered facility may restore a UN marking after repair |
| 49 CFR 172 Subparts C–F | Shipping papers, marking, labelling and placarding | The paperwork and markings that accompany the shipment itself |
| 40 CFR 165.117(k) | Pesticide container rinsing practice | The triple-rinse practice our W2 standard follows |
Retest
The intervals that quietly expire
In an unmanaged fleet, containers age out of compliance without anybody noticing until a shipment is refused.
| Interval | Requirement | Scope | Marked on unit? |
|---|---|---|---|
| Every 2.5 years | Leakproofness test and external inspection | Containment integrity, service equipment, marking legibility | Yes — test date |
| Every 5 years | Full requalification | Leakproofness plus internal and external inspection and structural verification | Yes — test date |
| After any repair | Retest before return to service | Any repair affecting containment or structural equipment | Yes |
| Before each use | Visual check by the offeror | Damage, leakage, marking legibility, retest currency | No — but it's your obligation |
Managed fleets track retest intervals against every unit so this never becomes a surprise →
Three questions to ask any seller of “UN rated” used totes
- What is your reconditioner registration number? Only a registered facility may restore a UN marking after repair. If they do not have one, they cannot have legitimately restored anything.
- What is the most recent test date marked on the container? If it is outside the retest window, the container is not authorised regardless of what the plate says.
- What repairs were performed, and were they retested? A repair without a subsequent test breaks the authorisation even if the work was competent.
A seller who answers all three specifically is selling compliance. A seller who deflects is selling you a risk that lands entirely on you, because the offeror carries the legal responsibility for the shipment.
The fuel question
We get asked constantly, so plainly: composite IBC totes are not an authorised packaging for transporting most fuels on public roads, and doing it anyway is a serious violation with real penalties. It is also genuinely dangerous — static, vapour and a 275-gallon plastic vessel are a poor combination.
Static storage of fuel on private property in a properly placarded, bonded, grounded and contained tote is a different question, governed by fire code and local requirements rather than DOT. Many operations do it lawfully. Check with your local authority having jurisdiction rather than with a forum.
What we do and don't provide
We supply UN-marked units where the marking is valid and the retest is current, primarily through rebottling, where requalification is handled as part of the work. We provide the test records and the registration details.
What we do not do is tell you that a given container is suitable for your specific regulated material. That determination involves chemical compatibility, packing group, quantity and your own shipping programme — it is the offeror's call, and any supplier who makes it for you is doing you no favours.
Questions people actually ask
+Can I ship regulated product in a used IBC tote?
+How often does an IBC need retesting?
+Can I transport fuel in an IBC tote?
+Does a used tote lose its UN rating automatically?
+Who is legally responsible?
Quick reference
Numbers worth having open in another tab
The figures that come up in almost every conversation, whichever page you arrived on.
275 gallon · 1040 L
48×40×46
- Tare
- 130 lb
- Gross, water
- 2,425 lb
- Stack full
- 2 high
- Stock
- Always in stock
330 gallon · 1250 L
48×40×53
- Tare
- 160 lb
- Gross, water
- 2,915 lb
- Stack full
- 2 high
- Stock
- Always in stock
264 gallon · 1000 L
48×40×46
- Tare
- 125 lb
- Gross, water
- 2,325 lb
- Stack full
- 2 high
- Stock
- Usually in stock
350 gallon · 1325 L
48×40×56
- Tare
- 175 lb
- Gross, water
- 3,095 lb
- Stack full
- 2 high
- Stock
- Order in
From the yard notes
Longer reading on this
32 articles written by the people who wash, grade, weld and dispatch. No marketing copy in any of them.
- Compliance · March 8, 2023 · 3 minTracking Retest Dates Before They Quietly ExpireNothing announces itself. The container looks identical the day after its window closes as it did the day before.
- Compliance · September 21, 2021 · 3 minReading the UN Plate on Your Cage31HA1/Y/0426/USA/M1234. Five fields, each of which tells you something you probably need.
- Compliance · February 24, 2022 · 3 minWho Is Actually Responsible for a Hazmat ShipmentShort answer: you are. Longer answer: here's exactly which parts, and which parts your supplier genuinely owns.
On the yard this week


More answers
While you're here
Pulled from the full FAQ, which runs to forty-plus answers across buying, grades, food safety, sizes, selling, compliance, delivery and care.
- Where we are
- 3505 Montopolis Dr, Austin, TX 78744
- Yard hours
- Mon–Thu 7:30a–5p · Fri 7:30a–4p · Sat 8a–12p · Sun closed (Central Time)
- Coverage
- 68 Texas counties on scheduled routes, from one Austin yard.
+What does 31HA1/Y mean?
+Who is responsible for compliance?
+Does a used tote keep its UN rating?
+How much does a used IBC tote cost?
+Can I clean a tote myself?
Send the material and the packing group.
That plus quantity is enough for us to quote units with valid marking and current retest — or to tell you honestly that you need new containers.