Reefer fuel accessorial explained

Carrier context

Reefer fuel questions should separate trailer-unit fuel from tractor fuel and connect the request to temperature-control instructions.

When it applies

• The refrigerated unit must run for loading, transit, waiting, or delivery under shipper instructions.
• The broker or shipper asks for continuous run, pre-cool, or extended trailer operation beyond the expected move.
• The event is tied to the load and is outside the basic linehaul move.
• The broker, shipper, or receiver instructions create extra time, labor, mileage, or out-of-pocket cost.
• The rate confirmation or written approval gives a path for requesting the charge.

Common documentation

• Temperature records, reefer fuel receipts if separate, washout receipt, and shipper instructions.
• Delay notes showing why the unit had to run longer than planned.
• Arrival and departure times when time is part of the request.
• Receipts, signed paperwork, gate records, emails, or text approvals.
• POD, BOL, revised confirmation, and invoice notes.

Negotiation notes

• Clarify reefer operating instructions before pickup.
• If delay increases reefer fuel exposure, pair the request with detention or layover documentation.
• Ask before the cost is incurred when possible.
• Keep the request factual and tied to written load terms.
• Do not assume approval from a phone conversation; request written confirmation.

Example wording

Please confirm how reefer fuel is handled for this load and whether extended run time caused by delay is separately approved.

References and methodology

• Accessorial documentation editorial methodology - LaneMath Editorial Desk. Used for documentation workflows and example scenarios, not for legal claims about collectability.
• Rate confirmation educational reference - LaneMath Editorial Desk. Used for document literacy. It is not legal advice and does not replace professional review.