This document provides an overview of tariff classification in the Philippines. It explains that all imported products are classified using the Tariff and Customs Code of the Philippines (TCCP), which is based on the ASEAN Harmonized Tariff Nomenclature (AHTN) and the Harmonized System (HS). The document guides the reader through the classification process, including reviewing the table of contents, relevant section and chapter notes, tariff headings and subheadings. It also summarizes the 6 general rules of interpretation that are applied to determine the appropriate classification.