5/29/1998 The tariff classification and status under the North American Free Trade Agreement (NAFTA) of multi-leaf springs from Mexico; Article 509. 9/11/2006 The tariff classification of various automotive assemblies 6/26/2019 The tariff classification of a leaf spring from Mexico 3/31/2000 The tariff classification of iron or steel leaf spring assemblies from Germany. 7/2/2002 COUNTRY OF ORIGIN MARKING OF IMPORTED LEAF SPRING ASSEMBLIES.