Customs Modernization and Tariff Act
Section 1100. Classification Ruling. - An importer or exporter may file a written application for an advance ruling on the tariff classification of goods with the Commission. The Commission shall render a ruling within thirty (30) days from, receipt of a properly documented application.
When a declared tariff classification of goods, not subject of a pending application for advance ruling, is in dispute, the importer, exporter, or the Bureau shall submit the matter to the Commission for a ruling, without prejudice to the application of Section 1106 of this Act on "protest": Provided, That such rulings of the Commission on commodity classification shall be binding upon the Bureau, unless the Secretary of Finance shall rule otherwise.