Commercial Instrument
Bilateral service agreements executed between shippers, freight forwarders and air carriers establish forward cargo capacity and transportation pricing across designated international aviation lanes. These instruments, classified commercially as air freight contracts, bind operating airlines to supply defined pallet positions or gross payload tonnage on scheduled flights while committing shippers to meet stated volume minimums. Capacity allocations define specific allotments on freighter main decks or passenger lower decks across agreed scheduling windows.
Master terms establish line-haul flight rates, standard fuel index mechanisms, liability allocations under the Montreal Convention and strict cargo handling specifications for specialized consignments.
Capacity Commitment
Capacity procurement splits between hard block space agreements, soft block allocations and secondary master service frameworks. Hard block variants impose strict take-or-pay financial obligations, forcing the shipper to pay the full agreed lane rate regardless of whether cargo arrives at the staging warehouse. Soft block arrangements permit cargo volume cancellations without heavy cash penalties, provided the contracting merchant provides formal advance notice forty-eight to seventy-two hours prior to flight departure.
Standard terms define flight cancelation rights, wet-lease operational transfers and seasonal schedule alterations driven by civil aviation authorities. Fuel adjustment clauses govern kerosene price movements by attaching charges to spot regional jet indices. Surcharges recalculate automatically whenever standard aviation turbine fuel rises above baseline contractual triggers.
Temperature-sensitive pharmaceuticals and dangerous goods cargo categories mandate supplementary service schedules detailing ramp handling protocols and battery limits.
Contractual Breach
Performance defaults trigger financial reconciliation mechanisms codified directly within agreed service schedules. Shippers failing hard block volume thresholds pay agreed deadfreight penalties assessed on the unutilized allotment weight. Carriers failing contracted lift allotments face offset fees, reimbursing the affected forwarder for alternate line-haul placement or secondary trucking line-haul to alternative hub airports.
Force majeure clauses specify narrow exemptions, excluding ordinary mechanical airframe groundings while recognizing extreme weather closures, airspace bans and civil conflict. Liability recovery limits remain governed by treaty limits based on Special Drawing Rights per kilogram, barring separate declared cargo value riders purchased before cargo tendering. Multi-lane contracts terminate prematurely when severe jet fuel surges exceed contracted index caps, forcing immediate rate renegotiation between trade partners.