DSV Mobilisation in Nigeria: A Step-by-Step Checklist

Mobilising a dive support vessel in Nigeria means running three separate approval tracks at once: the vessel itself, the project crew, and the dive spread. Each answers to a different authority, and a delay in any single track keeps the entire operation waiting.

Clearing the vessel into port

  1. Apply for port entry approval and berth allocation through the Nigerian Ports Authority
  2. Obtain statutory and flag clearance through NIMASA
  3. Complete inward clearance with Customs, Port Health and Immigration on arrival
  4. Address cabotage compliance under the Coastal and Inland Shipping Act if the vessel is foreign-flagged and will work Nigerian coastal waters — either through Nigerian-flagged tonnage or a NIMASA-administered waiver
  5. Confirm the berth schedule does not clash with client equipment load-out on the same quay

Marine crew versus project crew

Marine crew sail with the vessel and are handled as seafarers on the crew list with shore passes. Project crew — divers, dive supervisors, life support technicians, ROV pilots, client representatives — join in-country and must be treated as expatriate workers needing a TWP or a quota-backed permit. Mixing these two categories on one document set is one of the most common and disruptive errors contractors make in Nigeria.

Chambers, gas and consumables

Saturation systems, hyperbaric rescue units and gas quads must be declared clearly on arrival with certification ready for inspection. Helium, oxygen and mixed gas planning should start weeks ahead of mobilisation since local sourcing and importation both take lead time. Bulk consumables, provisions and fresh water are arranged alongside the vessel during the same port call.

Bunkers, stores and the pre-mobilisation audit

Fuel, lube oils and stores are usually loaded at the mobilisation port under an approved bunkering procedure with a documented transfer plan. Before the first dive, most operators run a pre-mobilisation audit covering the dive system, IMCA compliance evidence, emergency response and hyperbaric evacuation arrangements, and confirmation of a receiving hospital and medevac route onshore.

Common mobilisation mistakes to avoid

  • Booking marine crew shore passes for project crew who actually need work permits
  • Ordering gas quads too late to allow purity certification before the campaign starts
  • Scheduling bunkering on the same quay slot as a client cargo load-out
  • Leaving cabotage waiver applications until the vessel is already inbound
  • Not confirming the receiving hospital and chamber facility before diving begins

PeaceRyde acts as single local agent for DSV mobilisations in Nigeria — port entry and berth coordination, statutory clearances, project crew immigration, customs handling for the dive spread, bunkers, provisions, transport, hotels and 24-hour operational cover for the length of the campaign.

Key Takeaways

  • Vessel clearance, project crew immigration and dive spread customs run on three separate, parallel tracks
  • Marine crew use shore passes; project crew need TWP or quota-backed work permits — do not mix them
  • Gas quads need weeks of lead time for sourcing, importation and purity certification
  • Cabotage waivers should be applied for before the vessel is inbound, not after arrival
  • A pre-mobilisation audit with a confirmed medevac route should close out before the first dive

Frequently Asked Questions

Does a foreign-flagged DSV need a cabotage waiver to work in Nigeria?

If the vessel will operate in Nigerian coastal waters and does not meet the Nigerian build, ownership, registration and crewing requirements under the Cabotage Act, a waiver from NIMASA is needed. Waivers are time-bound, so apply well before the vessel is required on hire.

Can project crew travel on the same shore pass as marine crew?

No. Marine crew on the vessel crew list use shore passes, while project crew joining in-country are expatriate workers who need a TWP or quota-backed permit. Treating project crew as marine crew is a frequent compliance error that causes problems at inspection.

How early should gas for a saturation system be ordered before mobilisation?

Order helium and oxygen quads several weeks ahead. Purity certification must be confirmed before any gas goes into a chamber, and both local sourcing and importation can take longer than expected if left late.

What does a pre-mobilisation audit for a DSV usually check?

It typically covers the dive system itself, IMCA compliance evidence, emergency response and hyperbaric evacuation plans, and confirmation of an onshore receiving hospital and medevac route before diving starts.