The United States International Trade Commission has updated the Harmonized Tariff Schedule of the United States effective July 1, 2020. Mid year is a good time to review your harmonized codes. The change record for this revision includes 4 pages of newly established, modified, and discontinued codes.
Using obsolete codes can result in customs delays, inaccurate duty assessments, or fines and penalties so it is a good business practice to check the tariff. While you are at it are you sure EAR99 and NLR apply to your exports?
For assistance contact mitch@52.91.45.227