8529.90.16 - Assemblies and subassemblies, consisting of 2 or more parts or pieces fastened or joined together

This HTS category, 8529.90.16, encompasses printed circuit assemblies (PCAs) that are specifically designed for use with apparatus falling under headings 8524 to 8528, excluding those intended for apparatus of heading 8525. It covers PCAs that do not fit into more specific subcategories based on their intended application within this broad range of electronic equipment.

The distinction between 8529.90.16 and its sibling, 8529.90.19, lies in the specificity of the apparatus for which the printed circuit assemblies are intended. While 8529.90.19 covers "Other" assemblies without further qualification, 8529.90.16 is a more granular classification for PCAs that are part of radar, radio navigational aid, or radio remote control apparatus. This means that if a PCA is exclusively for one of these specified types of equipment, it will be classified under 8529.90.16, whereas a PCA for other types of equipment within the 8524-8528 range, and not covered by 8529.90.16, would fall under 8529.90.19.

Within 8529.90.16, further subdivisions exist to precisely classify these specialized printed circuit assemblies based on their ultimate application. The subcategories differentiate between PCAs for radar apparatus, those for radio navigational aid equipment (excluding radar), and a general "Other" category for any remaining PCAs within the scope of 8529.90.16 that do not meet the specific criteria for radar or non-radar navigational aids. This tiered structure allows for accurate customs reporting by aligning the classification with the specific function and intended use of the electronic component.