---
title: "Reduction in Term of Imprisonment as a Result of Amended Guideline Range"
citation: "U.S.S.G. § 1B1.10 (2025)"
authority_id: "AUTH-USSG-2025-1B1-10"
authority_type: "guideline"
jurisdiction: "federal_nationwide"
precedential_status: "binding_policy_statement_for_section_3582_c_2"
official_url: "https://www.ussc.gov/guidelines/2025-guidelines-manual/annotated-2025-chapter-1"
url: "https://jason93.com/legal/federal-process/authorities/AUTH-USSG-2025-1B1-10/"
legal_review: "2026-08-25"
links_checked: "2026-10-15"
links_available: 1
links_checked_count: 1
license: "CC BY 4.0"
---

# U.S.S.G. § 1B1.10 (2025)

## Propositions supported

Listed-amendment retroactivity, actual-range lowering, substitute-only recalculation, reduction floors, substantial-assistance exception, time-served floor, and discretionary considerations in § 3582(c)(2) proceedings.

## Material limitations

The amendment list and text must be rechecked against the manual current on the decision date. This record does not calculate any person's amended range.

## Official source

<https://www.ussc.gov/guidelines/2025-guidelines-manual/annotated-2025-chapter-1>


## Used in

- [18 U.S.C. § 3582 — Sentence-Modification Remedy Router](https://jason93.com/legal/federal-process/modules/70-sentence-modification/section-3582-remedy-router.md)
- [Rules 35 and 36 — Sentence Correction, Assistance, Record Error, and Appeals](https://jason93.com/legal/federal-process/modules/70-sentence-modification/rules-35-36-and-modification-appeals.md)