Type

Common Exapmples

Domestic

International

Domestic Mail

Pub 52

Maximum Amount Permitted in Mail

Additional Information

Air

Surface

Miscellaneous

Dry ice

Y

Y

N

349.23

349.233

5 lbs. maximum for air (surface may exceed 5 lbs.) (Proper forms/warning labels required for air only.)

Magnetized materials

Y

Y

Y

349.24

349.242

Depends on magnetic strength.

Lithium batteries

Y

Y

Y

349.221

349.222

See the IMM^® 622.5 for international mail restrictions.

Y* See Pub 52 for additional required markings.

Y** Only with prior written permission per IMM and Pub 52.

Y*** Specimens only and with prior HQ permission per IMM and Pub 52.

N* Except as permitted by mailing rules