Article 51:

1. 1. The value of the goods shall be calculated in accordance with those approved in the customs declaration.
   2. The PDG of “Geation et Exploitation du Port de Beyrouth” may not take into account the provisions of paragraph (a) above and determine the value by referring to an invoice duly certified in the country of origin (and translated, if it is organized in a language other than Arabic, French or English), or to the report of an expert accredited by customs or an expert accredited by GEPB.