9620.00.30.30 - Of levels

This HTS classification covers accessories specifically designed for use with surveying instruments and appliances within heading 9015, which are "of levels." This includes a wide array of support structures, stands, and mounting devices that are integral to the stable and accurate operation of levels. Such items are characterized by their function in holding, adjusting, or positioning a level instrument for precise measurement of horizontal planes and elevations.

The distinction between this category and its siblings lies in the specific intended use with "levels." For instance, it is differentiated from 9620.00.30.10, which pertains to accessories for rangefinders, and 9620.00.30.20, which covers accessories for theodolites and tachymeters. While all these fall under the broader umbrella of accessories for instruments of heading 9015, this particular subcategory is exclusively for those that enhance or facilitate the function of level instruments.

As this is a leaf node within the HTS structure, there are no further subcategories to detail. Classification within 9620.00.30.30 is therefore determined by the direct association of the accessory with a level instrument. Examples of items that would fall here include tripod heads specifically designed for leveling applications, specialized mounting brackets for levels, and portable stands engineered to ensure the stability of levels in various field conditions. The defining characteristic remains the accessory's purpose in supporting or enhancing the operation of a level.