On-Hire / Off-Hire Bunker Survey Services

At USAMS – Unique Solution Association for Marine Surveying, we provide professional and independent **On-Hire and Off-Hire Bunker Survey Services* designed to accurately determine the quantities of fuel oil, diesel oil, lubricating oil, and other consumables onboard vessels at the time of delivery and redelivery.

These surveys play a vital role in protecting the interests of shipowners and charterers by providing an accurate and impartial record of bunker quantities at the commencement and completion of a charter period. Our experienced marine surveyors conduct all inspections in accordance with internationally recognized procedures and industry best practices, ensuring transparency, accuracy, and reliability.

Our Services Include:

- On-Hire Bunker Survey

Independent verification of all fuel, diesel oil, lubricating oil, and consumables onboard the vessel at the commencement of the charter period.

- Off-Hire Bunker Survey

Independent verification of all fuel, diesel oil, lubricating oil, and consumables onboard the vessel at the completion of the charter period.

- ROB (Remaining On Board) Survey

Determination and verification of the quantities of fuel, diesel oil, lubricating oil, and other consumables remaining onboard the vessel.

- Fuel Oil Sounding & Measurement

Measurement and calculation of fuel oil quantities using approved sounding procedures and tank calibration data.

- Diesel Oil Sounding & Measurement

Verification of diesel oil quantities through sounding, measurement, and calculation.

- Lubricating Oil Verification

Assessment and confirmation of lubricating oil quantities onboard the vessel.

- Fuel Consumption Verification

Review and verification of vessel consumption records and remaining quantities onboard.

- Delivery & Redelivery Bunker Certification

Preparation and issuance of bunker quantity certificates during vessel delivery and redelivery operations.

- Photographic Documentation & Reporting

Comprehensive photographic records and detailed reporting to support survey findings and ensure complete transparency.

Service Overview

Our surveyors perform detailed measurements of all bunker tanks onboard the vessel, including fuel oil, diesel oil, lubricating oil, and other consumables. Soundings are carefully taken and corrected for vessel trim and list, while temperature and density corrections are applied to determine the actual quantities onboard.

All relevant vessel records, tank calibration tables, bunker documentation, and consumption records are reviewed to ensure the highest level of accuracy. Upon completion of the survey, a comprehensive report is issued detailing all measurements, calculations, observations, and verified bunker quantities.

Why Choose USAMS?

* Independent and impartial bunker quantity verification
* Experienced and qualified marine surveyors
* Accurate calculations using recognized industry standards
* Detailed reporting supported by photographic evidence
* Protection of owners’ and charterers’ interests
* Fast response and professional service
* Commitment to accuracy, transparency, and reliability

Our Commitment

USAMS is committed to delivering accurate, transparent, and dependable On-Hire and Off-Hire Bunker Survey Services that help shipowners and charterers minimize disputes, protect their commercial interests, and maintain confidence throughout the vessel delivery and redelivery process.