Gale is a global leader in education, learning, and research resources online. We have a vast digital archive of research databases, reference books (both eBook and print), and more! Learn more about Gale Â»
The HSN is a multipurpose international product terminology acknowledged by the World Customs Organization. The purpose of using the HSN codes is to ensure that GST billing practices are in accord with international standards of product nomenclature.
DSN is the Defense Switched Network, a telephone network specifically for the use of the U.S. military worldwide. The DSN uses its own internal numbering system, consisting of a 3-digit area code and 7-digit number.