---
type: restriction
id: usps-fuel-oil-na1993
asset: shipping-restrictions-by-class
title: "Fuel oil (NA1993) — Postal shipping restrictions by item category"
sources:
  - https://pe.usps.com/text/pub52/pub52c3_022.htm
source_quote: "Fuel Oil (NA1993): A flammable liquid with a typical flashpoint below 100° F (38° C) is mailable if it qualifies as a Limited Quantity surface material"
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Fuel oil (NA1993)"
carrier: "USPS"
restriction_type: "restricted"
scope: "domestic mail via surface transportation"
conditions: "Mailable if qualifies as Limited Quantity surface material and meets quantity limitations and packaging requirements; Packaging Instruction 3A or 3B as applicable"
verified: true
unverified_fields: carrier, conditions, restriction_type
---
**Item category:** Fuel oil (NA1993)

**Carrier:** USPS

**Restriction type:** restricted

**Scope:** domestic mail via surface transportation

**Conditions:** Mailable if qualifies as Limited Quantity surface material and meets quantity limitations and packaging requirements; Packaging Instruction 3A or 3B as applicable

> Fuel Oil (NA1993): A flammable liquid with a typical flashpoint below 100° F (38° C) is mailable if it qualifies as a Limited Quantity surface material

Source: <https://pe.usps.com/text/pub52/pub52c3_022.htm>