| 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. Refer to 521, 522, and 526.4. 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: Labels and markings must be placed on the address side of the mailpiece unless specified differently in 221.1 and 325.1. Each container must be marked with the following information: Directional arrows indicating “up” position (on at least two sides of the container). | |