# 39 C.F.R. § 320.1 (2026): Definitions

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_1

## Section

- **Citation:** 39 C.F.R. § 320.1 (2026)
- **Heading:** Definitions
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 39 CFR: Postal Service / Chapter I: UNITED STATES POSTAL SERVICE / Part 320: SUSPENSION OF THE PRIVATE EXPRESS STATUTES / § 320.1: § 320.1   Definitions.

## Text

The definitions in § 310.1 apply to part 320 as well.
1
1
Several of the items enumerated in § 310.1(a)(7) do not self-evidently lie outside of the definition of “letter”. To the extent, however, that there is any question whether these items may properly be excluded by definition, the Postal Service has determined by adoption of these regulations that the restrictions of the Private Express Statutes are suspended pursuant to 39 U.S.C. 601(b).
[39 FR 33212, Sept. 16, 1974]

## Nearby sections

- [39 C.F.R. § 320.1 (2026) § 320.1   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_1.md)
- [39 C.F.R. § 320.2 (2026) § 320.2   Suspension for certain data processing materials.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_2.md)
- [39 C.F.R. § 320.3 (2026) § 320.3   Operations under suspension for certain data processing materials.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_3.md)
- [39 C.F.R. § 320.4 (2026) § 320.4   Suspension for certain letters of college and university organizations.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_4.md)
- [39 C.F.R. § 320.5 (2026) § 320.5   Suspension for certain international-ocean carrier-related documents.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_5.md)
- [39 C.F.R. § 320.6 (2026) § 320.6   Suspension for extremely urgent letters.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_6.md)
- [39 C.F.R. § 320.7 (2026) § 320.7   Suspension for advertisements accompanying parcels or periodicals.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_7.md)
- [39 C.F.R. § 320.8 (2026) § 320.8   Suspension for international remailing.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_8.md)
- [39 C.F.R. § 320.9 (2026) § 320.9   Revocation or amendment of suspensions.](https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_9.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T39_P320_S320_1. Check the current official text before relying on it. Not legal advice.