| Field | Description | |
| au | Author | |
| bn | Bates Number | |
| bx | Box Number | |
| ca | Corporate author | |
| cr | Corporate recipient | |
| cn | Country | |
| dl | Date loaded | |
| dd | Document date | |
| dt | Document type | |
| er | Entire Record (default) | |
| fn | File Number | |
| lg | Language | |
| md | Metadata | |
| no | Named organization | |
| np | Named person | |
| ot | OCR text | |
| pg | Page count | |
| pc | Person copied | |
| rc | Recipient | |
| ti | Title | |
| More about fields |