Publication 52, Hazardous, Restricted, and Perishable Mail > 5 Perishable Matter > 52 Animals > 525 Nonmailable Live Animals
Nonmailable types of animals discovered in the mailstream must be reported to the PCSC in accordance with the instructions in POM 139.118. Additionally, the mailer and the Post Office of mailing must be notified to prevent future shipments from being incorrectly accepted for mailing.
Day-old poultry vaccinated with Newcastle disease (live virus) is nonmailable. Day-old birds, except those specifically permitted under 526.3 are nonmailable.
Warm-blooded animals, except for adult birds and specified day-old birds under the specific conditions in this section, are not mailable.
All snakes, turtles, and poisonous reptiles are nonmailable.
All poisonous insects and all spiders, except scorpions under limited circumstances (see 526.5), are nonmailable. Other nonpoisonous and non-disease-conveying insects are permitted as stated in Exhibit 526.6.