9028.90.00 - Parts and accessories

This HTS category, 9028.90.00, encompasses all parts and accessories specifically designed for use with the instruments classified under heading 9028. This includes components, sub-assemblies, and attachments that are essential for the operation, maintenance, or calibration of gas meters (9028.10), liquid meters (9028.20), and electricity meters (9028.30). Examples of such items might include internal gears, electronic sensors, display screens, seals, housings, and calibration modules, provided they are not more specifically classified elsewhere.

Unlike its sibling categories which classify the complete meters themselves based on the substance or energy they measure, 9028.90.00 focuses solely on the constituent parts and accessories. Therefore, if an item is a complete functioning meter, it would fall under one of the preceding subheadings. This category is reserved for items that, by themselves, do not perform the primary function of measuring gas, liquid, or electricity but contribute to the functionality of such meters.

To further refine classification, this category is divided into two subcategories. Subheading 9028.90.00.40 specifically covers parts and accessories of electricity meters, allowing for detailed tracking and reporting of these components. The residual subheading, 9028.90.00.80, captures all other parts and accessories for gas and liquid meters, ensuring comprehensive coverage of all meter components within heading 9028.