---
title: "NIST 800-171 3.13.13 (SC.L2-3.13.13): Mobile Code"
description: "NIST SP 800-171 3.13.13 Mobile Code: 1 SPRS point, allowed on a CMMC POA&M. The text, what assessors check and the evidence."
url: https://policycortex.com/nist-800-171/system-and-communications-protection/3.13.13
sealed: 2026-11-11
amended: 2026-11-11
register: nist-800-171/system-and-communications-protection/3.13.13
records: 7
digest: sha3:fbb13e29867981450744ebf0fcd54745f0bf5acca3cbfe42dec14b0201c71d32
---

# NIST 800-171 3.13.13 (SC.L2-3.13.13): Mobile Code

NIST 800-171 / System and Communications Protection / 3.13.13

"Control and monitor the use of mobile code." ([NIST SP 800-171 Rev. 2, requirement 3.13.13](https://doi.org/10.6028/NIST.SP.800-171r2))

CMMC Level 2 practice SC.L2-3.13.13.

## What 3.13.13 means in practice

Mobile code is software sent to a device and run without installation, such as JavaScript, macros in documents, Java applets or scripts in PDFs. Decide which kinds are acceptable, control them (for example by blocking Office macros in files from the internet) and monitor their use.

## SPRS points and the CMMC POA&M

- **CMMC Level 2 practice**: SC.L2-3.13.13
- **SPRS points**: 1 point. When it is not met, the DoD Assessment Methodology subtracts 1 from the score of 110.
- **CMMC POA&M**: Allowed. It is worth 1 point, and 32 CFR 170.21(a)(2)(ii) admits requirements worth 1 point. Conditional status also needs a score of at least 88, and the item must be closed within 180 days.

Sources: [NIST SP 800-171 DoD Assessment Methodology, version 1.2.1 (June 24, 2020), Annex A](https://www.acq.osd.mil/asda/dpc/cp/cyber/docs/safeguarding/NIST-SP-800-171-Assessment-Methodology-Version-1.2.1-6.24.2020.pdf); [32 CFR 170.21, Plan of Action and Milestones requirements](https://www.ecfr.gov/current/title-32/section-170.21).

## What an assessor checks for 3.13.13

NIST SP 800-171A gives 2 determination statements for 3.13.13, each found satisfied or other than satisfied. Determine if:

- 3.13.13[a] use of mobile code is controlled.
- 3.13.13[b] use of mobile code is monitored.

[NIST SP 800-171A (June 2018), assessment objectives for 3.13.13](https://doi.org/10.6028/NIST.SP.800-171A)

## Evidence that shows 3.13.13 is met

- The mobile code policy naming the acceptable and the blocked types.
- Browser and Office settings that restrict scripts and macros.
- Logs or alerts from endpoint protection about blocked mobile code.

## How PolicyCortex gathers the evidence

No PolicyCortex collector reads the evidence for 3.13.13. Your team provides the evidence listed above.

## Related pages

- **Calculator**: [SPRS score calculator: mark 3.13.13 and the other 109 requirements and see the score.](https://policycortex.com/sprs-score-calculator#family-SC)
- **Sample package**: [Sample package: an SSP, a POA&M and an evidence chain the product generated from demonstration data.](https://policycortex.com/sample-package)
- **Family**: [All 16 System and Communications Protection requirements (3.13).](https://policycortex.com/nist-800-171/system-and-communications-protection)
- **Previous**: [3.13.12: Collaborative Devices](https://policycortex.com/nist-800-171/system-and-communications-protection/3.13.12)
- **Next**: [3.13.14: Voice over IP](https://policycortex.com/nist-800-171/system-and-communications-protection/3.13.14)
- **All requirements**: [All 110 NIST SP 800-171 requirements, by family.](https://policycortex.com/nist-800-171)

Meet the requirement once. Keep the evidence current. [Request Access](https://app.policycortex.com/auth?mode=request-access) · [Book a call](https://policycortex.com/book)

## Register colophon

| Seq | Label | SHA3-256 | Prev |
|---|---|---|---|
| REC 0000 | REQUIREMENT | 53d87218f6dc | c54bd63a92f1 |
| REC 0001 | MEANING | a1c5cc40a608 | 53d87218f6dc |
| REC 0002 | POINTS AND POA&M | b29ab5a6d082 | a1c5cc40a608 |
| REC 0003 | ASSESSMENT OBJECTIVES | b0c080a3afe7 | b29ab5a6d082 |
| REC 0004 | EVIDENCE | eae851677711 | b0c080a3afe7 |
| REC 0005 | COLLECTORS | 76d262b55b95 | eae851677711 |
| REC 0006 | RELATED | fbb13e298679 | 76d262b55b95 |

Head sha3:fbb13e29867981450744ebf0fcd54745f0bf5acca3cbfe42dec14b0201c71d32. Each digest is SHA3-256 over the previous digest, the register key, the record label, and the record copy; a second party can recompute it from this document.