Start with the vessel’s operating plan

Confirm where and when the SCR system will operate using the vessel’s approved procedures and route-specific requirements. Do not assume the system remains off for an entire non-ECA passage or that every ECA has identical NOx rules.

The pre-voyage supply checklist

  1. Calculate: use the OEM or measured dosing rate, expected power/load and operating hours. Add a reserve chosen by the vessel’s technical team.
  2. Check stock: confirm usable onboard volume and its storage history. Do not count questionable or quarantined material as available stock.
  3. Choose the call: assess the Indian port, arrival window, available tank capacity and receiving arrangements.
  4. Confirm supply: agree quantity, format, documentation, responsibilities and commercial terms before mobilisation.
  5. Retain records: keep batch, quantity and handover documents with the vessel’s relevant records.

Compare complete supply offers

Weigh delivered cost, access, timing and documentation before assuming one port or country is always cheaper. Availability and delivery arrangements require confirmation for the specific call.

Find an Indian port or calculate a planning quantity.

References

Common questions

When should I take AUS40 before entering an ECA?

Plan it at the last port call where supply, access and documentation can all be settled without pressure. It is not simply the closest one to the boundary. Confirm the requirement when the call is fixed, because the constraint is usually access and paperwork; product is rarely the limiting factor.

How much AUS40 should I load?

Calculate from the documented dosing rate, expected power and load, and SCR operating hours for the passage, add the reserve your technical team sets, then subtract usable onboard stock. Exclude any material whose storage history is uncertain.

Is it cheaper to bunker AUS40 in India?

Compare delivered positions instead of unit rates. Port access, delivery format, transfer arrangement and timing all affect what a supply actually costs alongside, and a cheaper rate at an awkward location can cost more overall.

Can I assume the SCR stays off outside an ECA?

No. Confirm where and when the system will operate from the vessel’s approved procedures and the route-specific requirements. Assuming a full non-ECA passage with the system off is how vessels arrive short.