Nuclear CUI categories
5 categories in the Nuclear grouping of NARA's CUI Registry, with each one's category marking, banner marking and authority type.
For a defense contractor
Rare outside the nuclear enterprise, but naval nuclear propulsion sits in the Defense grouping and the general nuclear categories can appear on the same programs.
Categories
| Category | Marking | Banner | Authority |
|---|---|---|---|
| General Nuclear | NUC | CUI//SP-NUC | Basic and Specified |
| Nuclear Recommendation Material | RECCOM | CUI | Basic |
| Nuclear Security-Related Information | SRI | CUI//SP-SRI | Specified |
| Safeguards Information | SGI | CUI//SP-SGI | Specified |
| Unclassified Controlled Nuclear Information - Energy | UCNI | CUI//SP-UCNI | Basic and Specified |
Read from NARA's CUI Registry on 2026-09-08. Each category page carries NARA's full description and authorities.