---
kind: "section"
citation: "39 C.F.R. § 3030.242"
title: "39"
number: "3030.242"
heading: "Calculation of unused rate adjustment authority for rate adjustments that involve a rate increase which are filed 12 months apart or less."
url: "https://uscodex.org/cfr/39/3030.242"
---

# §3030.242. Calculation of unused rate adjustment authority for rate adjustments that involve a rate increase which are filed 12 months apart or less.

- (a) When rate adjustment filings that involve a rate increase are filed 12 months apart or less, unused rate adjustment authority for a class is equal to the difference between the maximum rate adjustment authority as summarized by [§ 3030.127](/cfr/39/3030.127.md) and calculated pursuant to subparts [C](/cfr/39/subpartC.md) through [G](/cfr/39/subpartG.md) of this part and this subpart, as appropriate, and the percentage change in rates for the class calculated pursuant to [§ 3030.128](/cfr/39/3030.128.md), subject to the limitations described in [paragraph (b)](#b) of this section.
- (b) For rate adjustment filings that involve a rate increase, unused rate adjustment authority cannot exceed the unused portion of rate authority calculated pursuant to subparts [C](/cfr/39/subpartC.md) and [D](/cfr/39/subpartD.md) of this part and [§ 3030.222](/cfr/39/3030.222.md).

## Notes

### Authority

Authority: 39 U.S.C. 503; 3622.

### Source

Source: 85 FR 81126, Dec. 15, 2020, unless otherwise noted.