---
kind: "section"
citation: "39 U.S.C. § 3404"
title: "39"
title_heading: "Postal Service"
number: "3404"
heading: "Unsealed letters sent by blind or physically handicapped persons"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/39/3404"
units:
  - "Part IV — Mail Matter"
  - "Chapter 34 — Armed Forces and Free Postage"
---

# §3404. Unsealed letters sent by blind or physically handicapped persons


Unsealed letters sent by a blind person or a person having a physical impairment, as described in [section 3403(a)(1) of this title](/usc/39/3403.md?p=a-1), in raised characters or sightsaving type, or in the form of sound recordings, may be mailed free of postage.


## Source credit

(Pub. L. 91–375, Aug. 12, 1970, 84 Stat. 758.)

## Notes

### Statutory Notes and Related Subsidiaries

### Effective Date

Section effective July 1, 1971, pursuant to Resolution No. 71–9 of the Board of Governors. See section 15(a) of Pub. L. 91–375, set out as a note preceding section 101 of this title.