Tetramethylene diperoxide dicarbamide
For Tetramethylene diperoxide dicarbamide, carrier is USPS; restriction type is prohibited; scope is domestic mail (air and surface); conditions is Listed as Forbidden in the Pub 52 Appendix A mailability guide; Prohibited in domestic mail by air and by surface, recorded from its source on 2026-08-10.
- Item category
- Tetramethylene diperoxide dicarbamide verified
- Carrier
- USPS our reading
- Restriction type
- prohibited our reading
- Scope
- domestic mail (air and surface) our reading
- Conditions
- Listed as Forbidden in the Pub 52 Appendix A mailability guide; Prohibited in domestic mail by air and by surface. verified
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
Tetramethylene diperoxide dicarbamide Forbidden Prohibited Prohibited Prohibited Prohibited
— pe.usps.com, retrieved 2026-08-10
Source
- pe.usps.comhttps://pe.usps.com/cpim/ftp/pubs/pub52/pub52.pdf