15 CFR § 30.51 - Statistical information required for import entries.

The information required for statistical purposes is, in most cases, also required by CBP regulations for other purposes. Refer to CBP Web site at http://www.cbp.gov to download “Instructions for Preparation of CBP–7501,” for completing the paper entry summary documentation (CBP–7501). Refer to the Customs and Trade Automated Interface Requirements for instructions on submitting an ABI electronic record, or instructions for completing CBP–226 for declaring any equipment, repair parts, materials purchased, or expense for repairs incurred outside of the United States.