Request for Public Comments on the Proposed Implementation of Duties on Additional Aluminum, Steel, and Copper Derivative Articles Under Section 232

This notice requests public comments on a proposal to include 14 additional derivative articles within the scope of the Section 232 duties on steel, aluminum, and copper: aluminum powder; brass-wind musical instruments and their parts and accessories; parts of welding machines and apparatus; floor safes; certain electric conductor cables; fire extinguishers; parts of heat exchange units; parts of certain hydraulic engines and motors; certain self-propelled cranes, mobile lifting frames, and straddle carriers; tanker trailers and semi- trailers; self-loading or self-unloading trailers and semi-trailers for agricultural purposes; certain other trailers and semi-trailers; and certain filled steel containers.