HazMat Tool — substance information

Cotton, wet

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 1365
Hazard class
4.2
Packing group
III
ERG guide
ERG 133
Special provisions
SP IB8, SP IP3, SP IP7
Source
49 CFR §172 (15 June 2026)

Spot an error in this entry?

Cotton, wet


Cotton (from Arabic qutn) is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus Gossypium in the mallow family Malvaceae. The fiber is almost pure cellulose and may contain minor percentages of waxes, fats, pectins, and water. Under natural conditions, cotton bolls facilitate the dispersal of the seeds. The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa (including Egypt) and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa Wikipedia

Emergency Response Guide No. 133

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard Class

4.2
Spontaneously combustible materials

(4) Identification number Help

UN 1365

(5) Packing Group Help

III

(6) Labels Help

Spontaneously combustible materials (4.2)

(1) Symbols Help


This entry is signed with "A". The letter "A" denotes a material that is subject to the requirements of this subchapter only when offered or intended for transportation by aircraft, unless the material is a hazardous substance or a hazardous waste. A shipping description entry preceded by an "A" may be used to describe a material for other modes of transportation provided all applicable requirements for the entry are met.
This entry is signed with "I". The letter "I" identifies proper shipping names which are appropriate for describing materials in international transportation. An alternate proper shipping name may be selected when only domestic transportation is involved.
This entry is signed with "W". The letter "W" denotes a material that is subject to the requirements of this subchapter only when offered or intended for transportation by vessel, unless the material is a hazardous substance or a hazardous waste. A shipping description entry preceded by a "W" may be used to describe a material for other modes of transportation provided all applicable requirements for the entry are met.

(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.
IB8
IP3
IP7

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

(8A) ExceptionsNone
(8B) Non-bulk204see 49 CFR §173.204
(8C) Bulk241see 49 CFR §173.241

(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.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / IDProper shipping nameHazard class
UN 1364Cotton waste, oily4.2