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228 Shipping Papers

Mailable hazardous materials eligible to be sent by Priority Mail Express, Priority Mail, First–Class Mail, or First-Class Package Service must be packaged, labeled, and appropriately documented for air transportation, as required by federal regulations and section 22.

Mailable hazardous materials sent via air transportation (except materials identified under 346.2) must be accompanied with a shipper’s declaration for dangerous goods (shipping paper) completed in triplicate and signed by the mailer.

Air carriers may reject mailpieces that are not accompanied by the required shipping papers. See 326 and Exhibit 326 and Chapter 7 for more information.