### Question
What does unused rate adjustment authority mean?


### Answer
**Unused rate adjustment authority** has the following meaning in *39 U.S.C. § 3622*:

> the difference between—


(I) the maximum amount of a rate adjustment that the Postal Service is authorized to make in any year subject to the annual limitation under paragraph (1)

#### Citation:
  - *39 U.S.C. § 3622*
  - Heading: **PART IV-MAIL MATTER > CHAPTER 36-POSTAL RATES, CLASSES, AND SERVICES > SUBCHAPTER I-PROVISIONS RELATING TO MARKET-DOMINANT PRODUCTS**

