- § 3401. Mailing privileges of members of Armed Forces of the United States and of friendly foreign nations
- § 3402. Repealed. Pub. L. 96–70, title I, § 1331(e)(3)(A), Sept. 27, 1979, 93 Stat. 482]
- § 3403. Matter for blind and other handicapped persons
- § 3404. Unsealed letters sent by blind or physically handicapped persons
- § 3405. Markings
- § 3406. Balloting materials under the Uniformed and Overseas Citizens Absentee Voting Act