19 C.F.R. § 122.73
(b) Air cargo manifest—(1) Form. The air cargo manifest must be on CBP Form 7509, and must show all information required. If a general declaration is not presented, the following statement, signed by the aircraft commander or agent, must appear on the form:
I declare that all statements contained in this manifest, including the account of the cargo on board this aircraft, are complete, exact, and true to the best of my knowledge. Signature (Aircraft Commander or Agent)
(2) Preparation and filing. The aircraft commander or agent must file two copies of the air cargo manifest with the Customs at the departure airport. Three copies of the air cargo manifest must be filed if the aircraft is covered by § 122.77(b). The air cargo manifest must be filed in:
[T.D. 88-12, 53 FR 9292, Mar. 22, 1988, as amended by CBP Dec. 17-06, 82 FR 32238, July 13, 2017]