Most importers assume that if a drayage carrier damages their cargo, the carrier's insurance picks up the bill. That assumption leads to expensive surprises. Carrier liability and cargo insurance are two different things, with different coverage limits, different legal frameworks, and very different payout amounts when something goes wrong. If you're moving containers through Port Miami or Port Everglades, understanding which one you're relying on — and whether it's enough — is worth more than the ten minutes it takes to read this.
What Carrier Liability Actually Covers
Every licensed motor carrier operating in the US is required to carry cargo liability insurance — the FMCSA minimum is $5,000 per vehicle or $10,000 per occurrence for household goods, but for general freight carriers it's set by individual bond and insurance filings. The minimum for most drayage carriers is $300,000, though many carry $100,000 or more in cargo liability coverage per load.
Here's the catch: carrier liability is not the same as full-value coverage. Carriers are not insurers. Their liability is limited by law and by contract. The carrier's policy covers losses caused by the carrier's negligence. If your container is dropped, if a door seal fails on a reefer move, or if the chassis blows a tire and cargo shifts — those are carrier-negligence scenarios where their liability coverage applies.
What carrier liability does not automatically cover:
- Theft from a sealed, undamaged container
- Damage that occurred before the carrier took possession
- Acts of God — flooding, lightning, hurricane events (Miami's real risk)
- Cargo that wasn't declared or described accurately on the bill of lading
- Consequential losses — missed sales, spoilage costs, production delays
The Carmack Amendment and Its Limits
Interstate trucking liability in the US is governed by the Carmack Amendment, a federal statute from 1906 that was updated and codified at 49 U.S.C. § 14706. Under Carmack, a carrier is liable for actual loss or damage to freight caused by the carrier — with specific exceptions.
The per-pound limit is where importers get burned. Electronics, medical devices, apparel, cosmetics, auto parts — high-value goods in a standard dry container can be worth $100,000 to $500,000. A carrier's $0.25/pound cap on a 20-foot container that weighs 35,000 lbs results in a maximum payout of $8,750. The rest of the loss falls on you.
How Cargo Insurance Is Different
Cargo insurance is a separate policy — usually purchased by the importer, the freight forwarder, or the customs broker — that covers the actual commercial value of the goods. It's not about carrier negligence. It pays based on the declared value of the cargo and the terms of the policy.
Cargo insurance premiums for container shipments moving through Port Miami typically run 0.1% to 0.5% of cargo value. On a $100,000 load, that's $100–500 for a policy that covers the full value. Compare that to the risk of relying on a carrier's $8,750 Carmack cap. The math isn't complicated.
One nuance that trips people up: cargo insurance and carrier liability can both apply to the same incident, but they don't stack. If your cargo policy pays out, your insurer may subrogate — meaning they pursue the carrier directly for the carrier's share of fault. That's between your insurer and the carrier, not your problem to manage.
What to Check Before Your Container Moves
Before your container clears Port Miami and your drayage carrier takes possession, confirm these items:
- Does your cargo insurance policy cover the drayage leg, or does it expire at the port gate?
- What is the carrier's declared liability limit in their tariff or bill of lading terms?
- Have you declared the actual commercial value of the cargo on the bill of lading, or accepted the carrier's released rate by default?
- If you have a high-value or fragile load, have you asked the carrier about declaring excess value — paying a higher rate for higher liability coverage?
- Does your freight forwarder or customs broker carry contingency cargo insurance as a backup?
Declaring excess value on the bill of lading is an option most carriers offer. You pay a higher rate per hundred-weight, and the carrier's liability cap increases accordingly. This costs more than a standalone cargo policy in most cases, but it's a cleaner approach if you're not working with a freight forwarder who handles insurance separately.
Common Claim Scenarios at Port Miami
Three scenarios show up regularly in Miami drayage claims:
Container dropped during chassis hook-up at the terminal. If a container falls during the pick-up process and goods shift or break, this is clearly carrier negligence. The carrier's liability coverage applies — but only up to their cap. If your cargo value exceeds that cap, the remainder is uncovered unless you have a cargo policy.
Theft from a sealed container at a staging yard. The container locks are intact, no signs of forced entry, but goods are missing. This is a difficult carrier-liability claim — the carrier can argue they didn't cause the loss. A cargo insurance all-risk policy typically covers this. Carrier liability may not.
Water damage from a storm at Port Everglades. A tropical system moves through Broward, the terminal floods, and your container's cargo is water-damaged. Acts of God are excluded from carrier liability. Cargo insurance with all-risk coverage would cover this, subject to your policy terms.
Who Should Buy Cargo Insurance
If your cargo has a commercial invoice value above $20,000, buy cargo insurance — full stop. The premium cost is marginal compared to the exposure. If you're importing consumer electronics, apparel, cosmetics, food products, pharmaceuticals, or any high-volume goods, the math favors coverage every time.
Who can arrange it:
- Your freight forwarder — most offer marine cargo coverage as part of their service
- Your customs broker — some brokers carry contingency insurance for loads they're clearing
- Directly through a marine insurance company or broker (Marsh, Aon, and specialty freight insurers all write this coverage)
- Your domestic property insurer — some commercial property policies extend to goods in transit, worth checking before buying a separate policy
One thing to avoid: assuming your carrier's COI (Certificate of Insurance) means your cargo is fully covered. A COI proves the carrier has their required insurance. It does not tell you the per-load liability cap, what's excluded, or whether the policy will actually respond to your specific claim. Get the tariff terms and understand what you agreed to when you signed the bill of lading.
At One A Trucks, we're bonded carriers and we carry standard cargo liability coverage on every load. We'll always tell you our liability limits upfront. But for high-value loads, we recommend shippers arrange their own cargo insurance — it's the cleaner, more complete protection for everyone involved.