One document decides whether we can buy your empties, what we can do with them afterwards, and what they are worth. It takes about four minutes to write properly, and a surprising number of otherwise well-run operations get it wrong.
What it is for
A prior-cargo declaration is a written statement from the generator of every cargo a container has held. It is not a courtesy and it is not a formality. It determines:
- Whether the container can be washed at all, and with what chemistry.
- How long it needs to soak, which is the main variable cost in reconditioning.
- Whether it can ever hold food again — a question that cannot be answered after the fact.
- Whether it can be re-marked for regulated service.
- Whether we are legally able to accept it at all under the RCRA empty criteria.
It also determines the price, because food history can more than double a unit's value while an odour-fixing cargo drops it to scrap regardless of how good it looks.
What a good declaration contains
- The specific product name. Not “cleaner” or “additive” or “soap.” The trade name and, where it exists, the chemical family.
- Concentration. Thirty-two per cent calcium chloride behaves differently from saturated brine, and sulphuric acid at 93 per cent is a different conversation from a dilute blend.
- Every prior cargo, not just the last one. HDPE remembers. A unit that held a terpene cleaner in 2022 is not a food tote in 2026 no matter what has been in it since.
- Confirmation the unit is drained. Residual liquid is the one thing that gets a load refused at our gate.
- A name, a title and a date. Someone with authority to make the statement.
- An SDS reference or attachment where the cargo is anything other than water.
What makes one useless
Vagueness. “Industrial chemicals” tells us nothing. We cannot select chemistry, set dwell time or assess food suitability from a category.
A verbal assurance. We learned this in 2010 with twelve totes described as “just soap” that turned out to be a cationic surfactant. They pitted the gaskets, contaminated a tank and all twelve went to resin recovery. Written only, since then, without exception.
Covering only the most recent fill. A container's history is cumulative. If you bought the totes used yourself, say so and pass on whatever you received.
Hedged language. “We believe these contained…” is not a declaration. If you do not know, say you do not know — we will still quote, just at non-potable-service value.
A usable template
Six lines on your letterhead is enough:
- Generator name, site address and date.
- Number and type of containers, with serial or asset numbers where you have them.
- Every product held, by trade name and concentration, most recent first.
- Confirmation that all containers are fully drained and capped.
- Confirmation that none of the cargo meets hazardous waste criteria under 40 CFR 261.
- Name, title and signature of someone authorised to say all of that.
If you are on a standing pickup route, we set this up once as a template and you sign a copy per collection. It stops being a task after the first time.
The uncomfortable part
We refuse loads over this. Not often, but regularly, and it is never a pleasant conversation on a dock with a driver waiting. The rule costs us deals every month.
It is also the reason our outbound grades mean something. Every customer who buys a reconditioned tote from us is relying on the declaration somebody else wrote. We hold that line inbound so that the grade card is worth the paper outbound, and we are not going to relax it.
Why the generator has to write it
A declaration from a broker, a hauler or a yard that bought the containers second-hand is worth considerably less than one from the site that filled them, because only the filling site actually knows. Everybody downstream is repeating what they were told.
We accept pass-through declarations — if you bought used totes and received a declaration with them, send it on and say that is what it is. What we cannot accept is a confident statement from somebody who was not there. The chain matters, and saying honestly where your information came from is more useful than sounding certain.
The RCRA question, plainly
We are not a hazardous waste facility and we do not accept hazardous waste. The declaration is where that gets established, under the empty-container criteria in 40 CFR 261.7.
In practice this means two statements: that the container held a product rather than a waste, and that it has been emptied by the normal means for that container type with no more than the regulatory residue remaining. If either is in doubt, tell us and we will work out whether we can take it rather than discovering it at the gate.
Loads that fail this are quarantined on a sealed pad and returned, or handled by a licensed partner at the generator's cost. It is nobody's good day and it is entirely avoidable with a conversation up front.
Mixed loads, which need more care
A trailer of forty containers that held four different products needs the declaration to say which containers held which. Not a list of four products and a count of forty units — a mapping.
The simplest way is to segregate on the trailer and describe it by position: units one to twelve held product A, thirteen to twenty held product B. If you can mark the units, even better. The reason this matters is that we assign cargo classes and wash cycles per unit, and an unmapped mixed load has to be treated at the most conservative class across the whole batch — which costs you money on the buyback.
What a strong declaration gets you
- A faster quote. We can price from the document rather than asking three rounds of questions.
- A better price. Food-only history can more than double unit value. Precisely-described benign industrial cargo prices better than a vague category, because vagueness gets priced conservatively.
- A diversion certificate. We can only issue chain-of-custody and diversion documentation for material we can describe.
- No refused loads. Which is worth more than all of the above.
Record keeping on your side
Keep a copy. We retain declarations for seven years as a compliance record, and customers are occasionally surprised to be asked for one years later during an audit of their own waste streams. The document that proves you handled empties responsibly is the same document that let us buy them.
If you are on a standing route, we set up the template once and you sign a copy per collection. After the first setup it is a signature, not a task — which is the whole design goal, because a rule that is annoying to follow gets worked around.
What we do with it afterwards
The declaration determines the cargo class at the inbound dock, which sets the wash chemistry and dwell time. It then travels forward: the declaration you wrote ships with the unit when we sell it, verbatim, because the next buyer is relying on it exactly as we did.
That is the part worth knowing. You are not writing a form for us. You are writing the document that somebody three owners downstream will read before they decide what to put in the container, and that is why we are rigid about it.
