OMB control number
Form 637 - Application for Registration (For Certain Excise Tax Activities) and Questionnaires; IRS Notice 2023-06; IRS Notice 2024-06; IRS Notice 2024-37; IRS Notice 2024-49; IRS Notice 2024-74
OMB 1545-1835 · TREAS/IRS.
OMB 1545-1835
Form 637 is used to apply for excise tax registration for activities under sections 4101, 4222, 4662, and 4682. This includes, but is not limited to, pipeline operator or vessel operator: Activity Letter, Enterers, position holders, refiners, and terminal operators, Blenders, Producers or importers of alcohol, agri-biodiesel, and biodiesel (including renewable diesel), Producers of second generation biofuel. The information will be used to make an informed decision on whether the applicant/registrant qualifies for registration. Form 637 Questionnaires will be used to collect information about persons who are attempting to register or are registered with the Internal Revenue Service (IRS) in accordance with Internal Revenue Code (IRC) § 4101, 4222, 4662 or Notice 2005-04. The information will be used to make an informed decision on whether the applicant/registrant qualifies for registration.
The latest form for Form 637 - Application for Registration (For Certain Excise Tax Activities) and Questionnaires; IRS Notice 2023-06; IRS Notice 2024-06; IRS Notice 2024-37; IRS Notice 2024-49; IRS Notice 2024-74 expires 2028-04-30 and is listed under ICR 202407-1545-007.
Latest Forms, Documents, and Supporting Material
| Document | Type |
|---|---|
 Form 637 Application for Registration (For Certain Excise Tax Activities) | Form and Instruction |
| Form 637 Form 637 and Questionnaires | Form and Instruction |
| API Form 637 Comment Letter.pdf (document unavailable) | Public Comments |
| 45Z registration_Gevo RNG_November 29 2024.pdf (document unavailable) | Public Comments |
| PC_202407-1545-007_112924_112931_1.pdf (document unavailable) | Public Comments |
 1545-1835 Supporting Statement-4-18-25 - clean.docx (document unavailable) | Supporting Statement A |
| 2024 1545-1835 Supporting Statement.docx | Supporting Statement A |
 Form 637 and Questionnaires |
Form and Instruction |
| Form 637 and Questionnaires |
Form and Instruction |
| Form 637 and Questionnaires |
Other-Form 637- General Questionnaire |
| IRS Notice 2023-06 - Sustainable Aviation Fuel Credits - third-party disclosures |
Other-IRS Notice |
| IRS Notices - SAF (reporting, third-party disclosures, and recordkeeping) |
Other-IRS Notice |
All Historical Document Collections
OMB Details
Form 637 and Questionnaires
Federal Enterprise Architecture: General Government - Taxation Management
| Form | Name | Electronic access | Type |
|---|---|---|---|
| Form 637 | Application for Registration (For Certain Excise Tax Activities) | Fillable Printable | Form and instruction |
Review document collections for all forms, instructions, and supporting documents - including paper/printable forms.