to move, Enter to open, Esc to close. Try 3.5.3, AC.L2-3.1.1, MFA or unmarked.

General Proprietary Business Information PROPIN

A CUI category in the Proprietary Business Information grouping of NARA's registry, CUI Basic or CUI Specified depending on the authority, marked CUI//SP-PROPIN.

For a defense contractor

Foxx Cyber's note, not NARA's

Marked PROPIN. Another company's proprietary data in your hands under a contract is CUI; your own is not, until the government holds it.

NARA's description

CUI Registry · General Proprietary Business Information

Material and information relating to, or associated with, a company's products, business, or activities, including but not limited to financial information; data or statements; trade secrets; product research and development; existing and future product designs and performance specifications.

Verbatim from the registry entry, which NARA last reviewed on July 30, 2025. Fetched 2026-09-08.

Markings

Category marking
PROPIN
Banner, Specified authorities
CUI//SP-PROPIN
Banner, Basic authorities
CUI
Alternative banner, Basic
CUI//PROPIN

A banner reads CUI for Basic categories and CUI//SP-PROPIN for Specified ones, followed by any limited dissemination control such as NOFORN. How the marking rule works, verbatim from 32 CFR 2002.20.

Authorities

The law, regulation or Government-wide policy that makes this information CUI, and whether it does so as a Basic or a Specified authority.

Safeguarding or dissemination authorityBasic or SpecifiedBannerSanctions
18 USC 1905BasicCUI18 USC 1905
15 USC 2055SpecifiedCUI//SP-PROPIN15 USC 2055(e)
15 USC 46(f)BasicCUI15 USC 50
18 USC 1831(a)(2)BasicCUI18 USC 1831
18 USC 1832(a)(2)BasicCUI18 USC 1832
21 USC 331(j)SpecifiedCUI//SP-PROPIN21 USC 333(a)
21 USC 355(c)(3)(D)(i)(III)SpecifiedCUI//SP-PROPIN
29 USC 664BasicCUI
33 USC 1318(b)BasicCUI33 USC 1318(b)
33 USC 1320(d)BasicCUI33 USC 1320(d)
33 USC 1322(g)(3)SpecifiedCUI//SP-PROPIN33 USC 1322(g)(3)
33 USC 1369(a)BasicCUI
42 USC 300j-4(d)(1)BasicCUI42 USC 300j-4(c)
42 USC 6921(b)(3)(B)(ii)(II)BasicCUI42 USC 6921(b)(2)(B)(ii)(II)
42 USC 6927(b)(1)BasicCUI42 USC 6927(b)(2) 42 USC 6928(d)
42 USC 6991d(b)(1)BasicCUI42 USC 6991d(b)(2)
42 USC 7414(c)BasicCUI
42 USC 9604(e)(7)(A)BasicCUI42 USC 9604(e)(7)(B)
51 USC 20131(b)SpecifiedCUI//SP-PROPIN
7 USC 12(a)(1)BasicCUI7 USC 13
7 USC 136h(b)BasicCUI7 USC 136h(f)
10 CFR 600.15(a)BasicCUI
19 CFR 351.105(d)BasicCUI
19 CFR 351.304(a)(1)(i)BasicCUI
19 CFR 351.305(a)(1)BasicCUI
19 CFR 351.306(a)BasicCUI
22 CFR 130.15BasicCUI
22 CFR 130.17(b)BasicCUI
28 CFR 100.20SpecifiedCUI//SP-PROPIN
48 CFR 9903.202-4BasicCUI
40 CFR 2.205(c)SpecifiedCUI//SP-PROPIN40 CFR 2.211
48 CFR 15.407-1(f)BasicCUI
48 CFR 225.7304(c)SpecifiedCUI//SP-PROPIN
48 CFR 52.203-13SpecifiedCUI//SP-PROPIN
48 CFR 52.239-1BasicCUI
5 CFR 2634.604(b)BasicCUI5 CFR 2634.703
5 CFR 2634.901(d)BasicCUI5 CFR 2634.703
49 USC 30167(a)BasicCUI
49 USC 32307(d)BasicCUI49 USC 32307(c) 49 USC 32308(b)
49 USC 32505(c)BasicCUI
49 USC 32708(a)BasicCUI49 USC 32709
49 USC 33116(a)BasicCUI
10 USC 2320(a)(2)(B)SpecifiedCUI//SP-PROPIN
42 USC 11042(a)(1)BasicCUI
17 CFR 140.98SpecifiedCUI//SP-PROPIN
17 CFR 145.5BasicCUI
15 USC 3710a(c)(7)SpecifiedCUI//SP-PROPIN
42 USC 1306(f)SpecifiedCUI//SP-PROPIN
2 CFR 910.362(d) (1)-(f)BasicCUI
2 CFR 910, Subpart D, Appendix ABasicCUI
10 CFR 600.325(d)(1)-(f)(2)BasicCUI
10 CFR 600, Subpart D, Appendix ABasicCUI
10 CFR 603.850BasicCUI
10 CFR 603.870BasicCUI
48 CFR 52.227-14(d)BasicCUI
48 CFR 52.227-20(d)BasicCUI
48 CFR 970.5227-1BasicCUI
48 CFR 970.5227-2BasicCUI
19 USC 1332(g)SpecifiedCUI//SP-PROPIN
19 USC 2436(a)(4)SpecifiedCUI//SP-PROPIN
19 USC 2252(a)(8)SpecifiedCUI//SP-PROPIN
19 USC 2252(i)SpecifiedCUI//SP-PROPIN
19 USC 1337(n)SpecifiedCUI//SP-PROPIN
19 USC 1677f(b)SpecifiedCUI//SP-PROPIN
19 USC 1677f(c)SpecifiedCUI//SP-PROPIN
19 USC 1677f(f)SpecifiedCUI//SP-PROPIN
19 CFR 201.6SpecifiedCUI//SP-PROPIN
19 CFR 206.7SpecifiedCUI//SP-PROPIN
19 CFR 206.8SpecifiedCUI//SP-PROPIN
19 CFR 206.17SpecifiedCUI//SP-PROPIN
19 CFR 206.54(e)SpecifiedCUI//SP-PROPIN
19 CFR 210.5(b)SpecifiedCUI//SP-PROPIN
19 CFR 210.5(d)SpecifiedCUI//SP-PROPIN
19 CFR 210.5(e)SpecifiedCUI//SP-PROPIN
19 CFR 210.34(c)(1)SpecifiedCUI//SP-PROPIN
19 CFR 210.72SpecifiedCUI//SP-PROPIN
19 CFR 207.3SpecifiedCUI//SP-PROPIN
19 CFR 207.4SpecifiedCUI//SP-PROPIN
19 CFR 207.7SpecifiedCUI//SP-PROPIN
19 CFR 207.51SpecifiedCUI//SP-PROPIN
19 CFR 207.93SpecifiedCUI//SP-PROPIN
10 CFR 2.390(b)BasicCUI
10 USC 4021 (i)(2)(B)(iii)BasicCUI

Source: https://www.archives.gov/cui/registry/category-detail/proprietary-business-info.