HazMat Tool — substance information

Articles containing miscellaneous dangerous goods, n.o.s.

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 3548
Hazard class
9
Packing group
ERG guide
Special provisions
SP 391, SP A224
Source
49 CFR §172 (15 June 2026)

Spot an error in this entry?

Articles containing miscellaneous dangerous goods, n.o.s.

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard Class

9
Miscellaneous hazardous materials

(4) Identification number Help

UN 3548

(5) Packing Group Help

n/a

(6) Labels Help

Miscellaneous hazardous materials (9)

(1) Symbols Help


This entry is signed with "G". The letter "G" identifies proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses, in association with the basic description. (See §172.203(k)).

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
391
A224

(8) Packing Authorizations (§173.***) Help

(8A) ExceptionsNone
(8B) Non-bulk232see 49 CFR §173.232
(8C) Bulk232see 49 CFR §173.232

(9) Quantity Limits Help

(9A) Passenger aircraft/railForbidden
(9B) Cargo aircraft onlyForbidden

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

No compatibility information for class 9 in 49 CFR §177.848 included.

Scope & sources (important)Click to show CFR references

This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):

  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles