7 Air Transportation Requirements

71 General

This chapter contains standards on the mailability of hazardous materials, restricted matter, and perishable matter in domestic mail via air transportation - for international and Army Post Office, Fleet Post Office, and Diplomatic Post Office (APO/FPO/DPO) mail, refer to Chapter 6. Compliance with regulations governing shipping harmful matter by air transportation is essential to ensure the safety of Postal Service employees, airline passengers and personnel, aircraft equipment, and Postal Service equipment and facilities.

For the purposes of this chapter, air transportation requirements apply to all mailable hazardous materials, restricted matter, and perishable matter sent via Priority Mail Express, Priority Mail, or First-Class Package International Service.