Each air carrier participating in an officially approved DOT code-share arrangement may assume responsibility for submitting information related to its own cargo as an "incoming air carrier" under 19 CFR 122.48a. 

When an aircraft submits its advance notice of arrival or its flight schedule pursuant to 19 CFR 122.31, such notice or schedule must contain the identities of the carriers that will participate in a code-share arrangement for cargo manifest purposes.  The carrier code and flight number of each airline must be listed on such advance notice or schedule.  In addition, the DOT docket number(s) regarding the code-share application for the carriers involved must be provided. 

For purposes of transmitting the air waybill information in Air AMS, each air carrier will transmit air waybill records referencing its own carrier code and flight number.  The party that supplies the information will be responsible for the accuracy and completeness of the information so provided. 

In addition, the general declaration, CBP Form 7507, which is generally required for all aircraft required to enter under part 122.41, must also contain the carrier code and flight number of each carrier participating in a cargo code-share arrangement for that flight.  Such information may be noted on the document in the box labeled "For official use only." 

The regulations note that aircraft arriving directly from Canada on a flight beginning in Canada and ending in the United States need not file a general declaration.  In this case, the various carriers involved in the code-share may be noted on the CBP Form 7509 in box 15.