Title 18 › Part I— CRIMES › Chapter 83— POSTAL SERVICE › § 1723
If second-, third-, or fourth-class mail has any extra writing or printing beyond the original content, it cannot be sent or delivered unless the sender pays first-class postage. Any stamps already on it are subtracted from what is owed, and an authorized Postal Service official can choose to forgive the extra postage. Anyone who knowingly hides higher-class material inside lower-class mail and sends it at the cheaper rate can be fined.
Full Legal Text
Crimes and Criminal Procedure — Source: USLM XML via OLRC
Legislative History
Reference
Citation
18 U.S.C. § 1723
Title 18 — Crimes and Criminal Procedure
Last Updated
Apr 5, 2026
Release point: 119-73not60