4.

The prices laid down in the contract shall not be subject to revision unless the contract expressly provides for the possibility of upward or downward revision and states precisely how the revised price is to be calculated, and solely to allow for variations in: transportation costs, including the cost of fuel, dues, taxes or fees chargeable for certain services, such as landing taxes or embarkation or disembarkation fees at ports and airports, the exchange rates applied to the particular package. During the twenty days prior to the departure date stipulated, the price stated in the contract shall not be increased.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-29 · Text as adopted (Official Journal); later amendments are not incorporated in this text.