Purpose: To apply for excise tax registration for activities under sections 4101, 4222, and 4682. See the charton pages 3–4 for the list of activities. Each business unit that has, or is required to have, a separate employer identification number (EIN) is treated as a separate person. Following persons must be registered: Enterers, position holders, refiners, and terminal operators: Activity Letter S. Blenders: Activity Letter M. Pipeline operator or vessel operator: Activity Letter X. Train operators who use dyed diesel fuel in their trains: Activity Letter W. Producers or importers of alcohol, agri-biodiesel, and biodiesel (including renewable diesel): Activity Letters AF, AB,and NB respectively. Credit card issuers: Activity Letter CC. Submit with the required additional information described on the chart on pages 3–4. File with: Internal Revenue Service Center Cincinnati, OH 45999. |