Most exporters I have worked with use Schedule B codes on their documents and for their EEI filings. Schedule B and HTS codes do not always match, so clients often need to maintain two lists.
If you are maintaining separate parts lists for HTS and Schedule B codes this could be a time saver. Check out the Notice to Exporters on the Harmonized Tariff Schedule (2022 Basic Edition as well as Revisions).
Exporters may use HTS codes in place of Schedule B. Go to https://hts.usitc.gov/ and choose the view tab. As always, there are exceptions, but you may be able to avoid toggling between lists.
Contact firstname.lastname@example.org for classification help.