FONAR - Fuel Oil Non-Availability
FONAR (Fuel Oil Non-Availability Report) filing procedure when compliant fuel unavailable per MARPOL Annex VI Reg. 18.2.
FONAR status
Valid FONAR - attach to MARPOL sample
Formula, assumptions, and limits
$$\text{FONAR} = \text{Valid if} \geq 2 \text{ ports, 24 h notice}$$
Multiple attempted supply + documented efforts + port/fleet notification. Ship must still demonstrate no economic decisions preferred non-compliant fuel. Max 1 non-compliant voyage per year.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $FONAR$ | Fuel Oil Non-Availability Report | - | MARPOL VI Reg.18 |
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