Customs Tariff amendment empowers government to amend the First Schedule by notification, subject to parliamentary review. The Act inserts section 11A into the Customs Tariff Act, 1975, empowering the Central Government to amend the First Schedule by notification in the Official Gazette when necessary in the public interest, subject to parliamentary scrutiny (laying for thirty days across sessions with power for both Houses to modify or annul) and prohibiting any amendment from altering rates leviable under the Customs Act, 1962; it substitutes a comprehensive new First Schedule (Import Tariff) and deems the Act to have come into force on 1 February 2003.