Publication 52 - Hazardous, Restricted, and Perishable Mail > Appendix C > USPS Packaging Instruction 10D Disease-free adult birds may be mailed domestically when shipped under all applicable governmental laws and regulations, including the Lacey Act, the Endangered Species Act (ESA), the Animal Welfare Act, regulations of the U.S. Department of Agriculture, U.S. Fish and Wildlife Service, and any state, municipal, or local ordinances. Each container must meet container specifications. See 521, 522, and 526.4. Not applicable. Not applicable. Containers must be designed with consideration of the birds’ comfort, awareness, health, and welfare, including possible temperature fluctuations that may occur during transport. In addition, the container must: Each container must be marked with the following information: | |