2/2/1998 Mounting Base and Enclosure for Marine Gas Turbine; Fabricated Structural Components for Acoustic, Thermal and Vibration Protection; Parts of Gas Turbines; Articles of Iron or Steel, Subheading 7326.90.90, Bauerhin Technologies v. U.S.; Section XVI, Note 2; HQ 955501 Revoked Dear Ms. Murphy: 2/5/1998 PRD 4102 -94-100056; Mounting Base and Enclosure for Marine Gas Turbine; Fabricated Structural Components for Acoustic, Thermal and Vibration Protection; Parts of Gas Turbines; Articles of Iron or Steel, Subheading 7326.90.90, Bauerhin Technologies v. U.S.; Section XVI, Note 2; HQ 955501 Revoked; HQ 958295 Dear Port Director: 12/21/1990 Gas Turbine; Gas Generator; Power Turbine; Compressor; Combustor; Engine; GRI 2(a) 10/10/2002 Protest 1801-01-100080; Compressor Blades 2/8/1993 Regulating Valve; Gas Turbojet Engine Part; Subheading 8411.99.90; Section XVI, Note 2, HTSUS; PRD 1001-92-103267 3/15/1994 IA 91/93; Fabricated Steel Base and Acoustic Steel Enclosure; Gas Turbine; Kores Manufacturing Inc. v. U.S.; HQ 065167 (IA 34/80); American Powerail, Inc. v. U.S.; GRI 2(a); Explanatory Notes 2(a)(V) and (VII); 8411.99.90 9/7/2004 Protest 5301-03-100548; Gas turbine parts 5/6/2004 Protest 4601-03-102749; Gas turbine and parts UNKNOWN 6/3/2021 Application for Further Review Protest No. 5201-18-100012; Tariff classification of Specialized Turbine Insulation System 5/1/1996 Application for Further Review of Protest No. 2501-95-10002; applicability of partial duty exemption under HTSUS subheading 9802.00.50 to turbine blades, etc., and other parts of Civil Aircraft; Mexico; NAFTA