Inks (flammable or combustible liquid)
For Inks (flammable or combustible liquid), carrier is USPS; restriction type is restricted; scope is domestic mail via surface transportation; conditions is Mailable if qualify as Limited Quantity surface material and meet requirements; primary receptacles must be cushioned with absorbent material; follow Packaging Instruction 3A or 3B as applicable, recorded from its source on 2026-08-04.
- Item category
- Inks (flammable or combustible liquid) unconfirmed
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail via surface transportation our reading
- Conditions
- Mailable if qualify as Limited Quantity surface material and meet requirements; primary receptacles must be cushioned with absorbent material; follow Packaging Instruction 3A or 3B as applicable unconfirmed
Values marked unconfirmed are shown, but we could not tie them to the quote below: Conditions, 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
Inks: Classified as flammable or combustible liquids. Defined as colored liquids used for writing, drawing, and printing, and often composed of pigments such as carbon black suspended in a drying oil. They are mailable if they qualify as Limited Quantity surface material
— pe.usps.com, retrieved 2026-08-04
Source
- pe.usps.comhttps://pe.usps.com/text/pub52/pub52c3_022.htm