Freight ForwardingMultiple modes
Peak Season Surcharge
PSSA carrier surcharge applied during periods of high demand under its tariff or contract.
Professional definition
A carrier surcharge applied during periods of high demand under its tariff or contract. Its precise legal, operational or charging effect depends on the applicable contract, carrier terms, route, jurisdiction and transport mode.
Example
Example: a logistics team records or applies “PSS” in the relevant booking, document, quotation or shipment milestone.
Where it is used
Used in freight forwarding operations, documents, systems and commercial discussions.
Common mistakes and things to remember
Confirm the precise meaning in the governing contract, tariff, official rules and provider terms; industry usage can vary.
Source
UN Trade and Transport Facilitation guidance
Use the linked authority and applicable national guidance for current requirements.