General information about how this market works, not legal, regulatory, tax or financial advice. It does not indicate that Zeaclub maintains an office in New Orleans. Requirements depend on the applicable authority, contract and jurisdiction, and change without notice.
New Orleans at a glance
| New Orleans | |
|---|---|
| Competent authority | United States Coast Guard, Sector New Orleans |
| Compulsory pilotage | Associated Branch Pilots, Crescent River Port Pilots and NOBRA Pilots in relay |
| Approach constraint | Long Mississippi River transit via Southwest Pass; current, silting and fog govern the passage |
| Port state control | USCG port state control regime (outside the MoU structure) |
| Register | US flag for domestic trades under the Jones Act; foreign flags in international trades |
| Principal ports | Port of New Orleans, South Louisiana, Baton Rouge, Plaquemines |
| Currency | USD |
| Time zone | CST (UTC-6) / CDT |
What changes in New Orleans
The Lower Mississippi runs one of the most active midstream transfer operations anywhere. Cargo moves between vessels and between vessels and barges at anchorages and midstream buoys along the river, which is a form of STS conducted in a river current rather than offshore.
That current is the distinguishing hazard. Mooring two vessels together in a flowing river is a different problem from doing it at anchor offshore, and high water makes it materially harder. Southwest Pass draft limits also drive genuine offshore lightering before some vessels enter the river at all.
- Midstream and anchorage transfers are routine, not exceptional, on this river.
- River current makes mooring two vessels together a different problem from offshore work.
- High water increases the difficulty and can suspend operations.
- Southwest Pass draft limits drive offshore lightering before river entry for some vessels.
- Barge-to-vessel transfer is a large part of the local operation.
Transfer operations on the Lower Mississippi
| Type | Where and how |
|---|---|
| Midstream transfer | At buoys in the river current |
| Anchorage transfer | At designated river anchorages |
| Barge to vessel | A very large share of local operations |
| Offshore lightering | Before river entry where Pass draft requires it |
| Governing hazard | River current, amplified at high water |
The New Orleans cluster
The Lower Mississippi is the largest bulk-handling river system in the world, moving grain, petrochemicals and coal through a chain of terminals from the passes to Baton Rouge. Pilotage runs in relay across three separate associations, and the river itself — current, silting, fog and high-water restrictions — is the dominant operational variable.
- Largest US grain export corridor
- Extensive petrochemical berths
- Midstream and anchorage transfer operations
- Deep inland barge connectivity
The fundamentals
A ship-to-ship transfer moves cargo directly between two vessels moored alongside each other, either at anchor or underway, without either touching a berth. It is a routine commercial operation in the oil, chemical, gas and dry bulk trades, not an exceptional one.
Transfers happen for three distinct reasons, and confusing them causes most of the planning errors:
This is the shared explanation, common to every market. The full treatment is in Ship-to-Ship Transfer: How STS Operations Actually Work.
Frequently asked questions
How is midstream transfer different from offshore STS?
The current. Mooring two vessels together in a flowing river introduces forces that do not exist at an offshore anchorage, and high water amplifies them. The equipment is similar; the manoeuvring and mooring problem is not.
Do vessels lighter before entering the Mississippi?
Some do, where Southwest Pass draft limits require it. That is a conventional offshore lightering operation, separate from the midstream transfers that happen inside the river.
Primary sources
- United States Coast GuardAccessed 2026-08-30
- USCG Office of Commercial Vessel ComplianceAccessed 2026-08-30