---
title: "NIST 800-171 3.3.6 (AU.L2-3.3.6): Audit Reduction"
description: "NIST SP 800-171 3.3.6 Audit Reduction: 1 SPRS point, allowed on a CMMC POA&M. The text, what assessors check and the evidence."
url: https://policycortex.com/nist-800-171/audit-and-accountability/3.3.6
sealed: 2026-11-11
amended: 2026-11-11
register: nist-800-171/audit-and-accountability/3.3.6
records: 7
digest: sha3:9663b36fa7f725e58b2a61825930e993884e886b4ad611cc5a28577e7fff1808
---

# NIST 800-171 3.3.6 (AU.L2-3.3.6): Audit Reduction

NIST 800-171 / Audit and Accountability / 3.3.6

"Provide audit record reduction and report generation to support on-demand analysis and reporting." ([NIST SP 800-171 Rev. 2, requirement 3.3.6](https://doi.org/10.6028/NIST.SP.800-171r2))

CMMC Level 2 practice AU.L2-3.3.6.

## What 3.3.6 means in practice

Analysts need to filter and summarize large volumes of log data on demand, and produce reports from it, without changing the original records. A SIEM or a log analytics workspace with saved searches and report templates usually provides both.

## SPRS points and the CMMC POA&M

- **CMMC Level 2 practice**: AU.L2-3.3.6
- **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 3.3.6

NIST SP 800-171A gives 2 determination statements for 3.3.6, each found satisfied or other than satisfied. Determine if:

- 3.3.6[a] an audit record reduction capability that supports on-demand analysis is provided.
- 3.3.6[b] a report generation capability that supports on-demand reporting is provided.

[NIST SP 800-171A (June 2018), assessment objectives for 3.3.6](https://doi.org/10.6028/NIST.SP.800-171A)

## Evidence that shows 3.3.6 is met

- The log platform's search, filtering and summarization capability.
- Saved queries or report templates used for on-demand reporting.
- A sample report produced from audit records.

## How PolicyCortex gathers the evidence

PolicyCortex reads this evidence with the collectors below, read only, and grades 3.3.6 from it. Each line says what the product checks.

- **Azure Monitor: Log Analytics workspaces.** Checks that a central Log Analytics workspace provides audit reduction and report generation.

## Related pages

- **Calculator**: [SPRS score calculator: mark 3.3.6 and the other 109 requirements and see the score.](https://policycortex.com/sprs-score-calculator#family-AU)
- **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 9 Audit and Accountability requirements (3.3).](https://policycortex.com/nist-800-171/audit-and-accountability)
- **Previous**: [3.3.5: Audit Correlation](https://policycortex.com/nist-800-171/audit-and-accountability/3.3.5)
- **Next**: [3.3.7: Authoritative Time](https://policycortex.com/nist-800-171/audit-and-accountability/3.3.7)
- **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 | ad2fec6cf993 | 69f6697332f5 |
| REC 0001 | MEANING | 06c96490f991 | ad2fec6cf993 |
| REC 0002 | POINTS AND POA&M | e8c5420ab900 | 06c96490f991 |
| REC 0003 | ASSESSMENT OBJECTIVES | 4b4309562f99 | e8c5420ab900 |
| REC 0004 | EVIDENCE | fb5fe3bcb594 | 4b4309562f99 |
| REC 0005 | COLLECTORS | de5893f50500 | fb5fe3bcb594 |
| REC 0006 | RELATED | 9663b36fa7f7 | de5893f50500 |

Head sha3:9663b36fa7f725e58b2a61825930e993884e886b4ad611cc5a28577e7fff1808. 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.