| Code | Role Type Name |
| 0001 | Copyright Holder |
| 0002 | Curator |
| 0003 | Custodian |
| 0004 | Owner |
| 0005 | Owner's Representative |
| 0006 | Subject |
| 0007 | Subject's Representative |
| 0008 | User - General Public |
| 0009 | User - LC Staff Member |
| 0010 | User - CRS Staff Member |
| 0011 | User - CRS IP Address |
| 0012 | User - Congressional IP Address |
| 0013 | User - LC Contractor |
| 0014 | User - US Government Agency, Library or Information
Center |
| 0015 | User - Teacher (classroom use) |
| 0016 | User - Student (classroom use) |
| 0017 | User - Member of Congress |
| 0018 | User - Congressional Staff Member |
| 0019 | User - Commercial/For Profit Organization |
| 0020 | User - Registerd to Use LC Reading Room(s) |
| 0021 | User - Non-profit Research Institution |
| 0022 | User - Educational Institution |
| 0023 | User - Non-profit Library or Information
Center |
| 0024 | User - Registered with LC Site Licensee |