Artikel 18

1. The Customs Administrations shall waive all claims for reimbursement of costs incurred in the execution of this Agreement, except for expenses and allowances paid to experts and to witnesses, pecuniary consequences of acts of recovery that have been found unjustified in respect of the reality of the customs claim concerned or the validity of the instrument permitting enforcement in the requesting Contracting Party as well as costs of interpreters other than Government employees, which shall be borne by the requesting administration.
2. If expenses of a substantial and extraordinary nature are or will be required to execute the request, the Contracting Parties shall consult to determine the terms and conditions under which the request will be executed as well as the manner in which the costs shall be borne.