Tax CUI categories
4 categories in the Tax grouping of NARA's CUI Registry, with each one's category marking, banner marking and authority type.
Categories
| Category | Marking | Banner | Authority |
|---|---|---|---|
| Federal Taxpayer Information | TAX | CUI//SP-TAX | Specified |
| Tax Convention | CONV | CUI | Basic |
| Taxpayer Advocate Information | TAI | CUI | Basic |
| Written Determinations | WDT | CUI//SP-WDT | Specified |
Read from NARA's CUI Registry on 2026-09-08. Each category page carries NARA's full description and authorities.