odor-producing materials
For odor-producing materials, carrier is USPS; restriction type is prohibited; scope is all domestic mail; conditions is Any matter that is a source of an obnoxious odor is nonmailable, recorded from its source on 2026-08-04.
- Item category
- odor-producing materials unconfirmed
- Carrier
- USPS our reading
- Restriction type
- prohibited our reading
- Scope
- all domestic mail our reading
- Conditions
- Any matter that is a source of an obnoxious odor is nonmailable
Values marked unconfirmed are shown, but we could not tie them to the quote below: Item category. Read the quote and judge them yourself.
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Any matter that is a source of an obnoxious odor is nonmailable.
— pe.usps.com, retrieved 2026-08-04
Source
- pe.usps.comhttps://pe.usps.com/text/pub52/pub52c4_018.htm