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Postal Explorer > Publication 52 - Hazardous, Restricted, and Perishable Mail > 1 Introduction > 12 Scope
The scope of this publication extends to all articles and materials that are
nonmailable because they may harm people or property or that have mailing
restrictions imposed upon them by the regulations of other governmental
agencies (see DMM 601.8).
Under 18 USC 1716, all matter that is outwardly or of its own force
dangerous or injurious to life, health, or property is nonmailable. The knowing
deposit of such matter in the mail is a crime punishable by fine,
imprisonment, or other penalty. However, certain hazardous materials and
otherwise restricted and perishable matter may be mailed under the
conditions permitted in DMM 601.8-601.11 and this publication.
The following are examples of hazardous materials, restricted matter, and
perishable matter. These are not complete lists, but they provide an idea of
the types of articles included in each category.
a. Hazardous materials (DMM 601.10) include:
(1) Corrosives.
(2) Explosives.
(3) Flammable liquids and solids, combustible liquids.
(4) Gases.
(5) Infectious substances, etiologic agents, clinical specimens,
biological products, sharps, other used medical devices.
(6) Miscellaneous hazardous materials (e.g., dry ice, magnetized
materials).
(7) ORM-D materials.
(8) Oxidizers, organic peroxides.
(9) Radioactive materials.
(10) Toxic substances (poisons).
b. Restricted matter (DMM 601.11) includes:
(1) Abortive and contraceptive devices.
(2) Battery-powered devices.
(3) Building construction materials.
(4) Controlled substances and drug paraphernalia.
(5) Firearms.
(6) Intoxicating liquors.
(7) Liquids and powders.
(8) Matter emitting obnoxious odors.
(9) Motor vehicle master keys.
(10) Nonhazardous liquids and powders.
(11) Sharp objects (knives, switchblades, stilettos).
(12) Odd-shaped items in letter-size envelopes.
c. Perishable matter (DMM 601.9) includes:
(1) Dead animals or parts of animals.
(2) Eggs.
(3) Live animals.
(4) Meat and meat products.
(5) Plants and plant products.
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