Customs Consulting Services Strategic Consulting Customs Consulting Get a Quote Call us +57 312 582 9577Chat with us now! WhatsApp Get a Quote LET Logistics Customs Consulting Tariff classification. Advice and management of operations between Free Trade Zone users. Compliance with standards and technical regulations. Customs optimization based on preferential tariffs. Compliance with sanitary and phytosanitary regulation. Process design of foreign trade operations, developing protocols and operations manuals.