StacksVerified U.S. regulatory reference

19 CFR Appendix to Part 163

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov

(1) Section 508 of the Tariff Act of 1930, as amended (19 U.S.C. 1508), sets forth the general recordkeeping requirements for Customs-related activities. Section 509 of the Tariff Act of 1930, as amended (19 U.S.C. 1509) sets forth the procedures for the production and examination of those records (which includes, but is not limited to, any statement, declaration, document, or electronically generated or machine readable data).

(2) Section 509(a)(1)(A) of the Tariff Act of 1930, as amended by title VI of Public Law 103-182, commonly referred to as the Customs Modernization Act (19 U.S.C. 1509(a)(1)(A)), requires the production, within a reasonable time after demand by the Customs Service is made (taking into consideration the number, type and age of the item demanded) if “such record is required by law or regulation for the entry of the merchandise (whether or not the Customs Service required its presentation at the time of entry).” Section 509(e) of the Tariff Act of 1930, as amended by Public Law 103-182 (19 U.S.C. 1509(e)) requires the Customs Service to identify and publish a list of the records and entry information that is required to be maintained and produced under subsection (a)(1)(A) of section 509 (19 U.S.C. 1509(a)(1)(A)). This list is commonly referred to as “the (a)(1)(A) list.”

(3) The Customs Service has tried to identify all the presently required entry information or records on the following list. However, as automated programs and new procedures are introduced, these may change. In addition, errors and omissions to the list may be discovered upon further review by Customs officials or the trade. Pursuant to section 509(g), the failure to produce listed records or information upon reasonable demand may result in penalty action or liquidation or reliquidation at a higher rate than entered. A recordkeeping penalty may not be assessed if the listed information or records are transmitted to and retained by Customs.

(4) Other recordkeeping requirements: The importing community and Customs officials are reminded that the (a)(1)(A) list only pertains to records or information required for the entry of merchandise. An owner, importer, consignee, importer of record, entry filer, or other party who imports merchandise, files a drawback claim or transports or stores bonded merchandise, any agent of the foregoing, or any person whose activities require them to file a declaration or entry, is also required to make, keep and render for examination and inspection records (including, but not limited to, statements, declarations, documents and electronically generated or machine readable data) which pertain to any such activity or the information contained in the records required by the Tariff Act in connection with any such activity, and are normally kept in the ordinary course of business. While these records are not subject to administrative penalties, they are subject to examination and/or summons by Customs officers. Failure to comply could result in the imposition of significant judicially imposed penalties and denial of import privileges.

(5) The following list does not replace entry requirements, but is merely provided for information and reference. In the case of the list conflicting with regulatory or statutory requirements, the latter will govern.

The following records (which include, but are not limited to, any statement, declaration, document, or electronically generated or machine readable data) are required by law or regulation for the entry of merchandise and are required to be maintained and produced to Customs upon reasonable demand (whether or not Customs required their presentation at the time of entry). Information may be submitted to Customs at the time of entry in a Customs authorized electronic or paper format. Not every entry of merchandise requires all of the following information. Only those records or information applicable to the entry requirements for the merchandise in question will be required/mandatory. The list may be amended as Customs reviews its requirements and continues to implement the Customs Modernization Act. When a record or information is filed with and retained by Customs, the record is not subject to recordkeeping penalties, although the underlying backup or supporting information from which it is obtained may also be subject to the general record retention regulations and examination or summons pursuant to 19 U.S.C. 1508 and 1509. (All references, unless otherwise indicated, are to the current edition of title 19, Code of Federal Regulations, as amended by subsequent Federal Register documents.)

[T.D. 98-56, 63 FR 32946, June 16, 1998]

Editorial Note 1:For Federal Register citations affecting the appendix, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

Editorial Note 2:At 90 FR 6482, Jan. 17, 2025, the part 163 appendix was amended; however, a portion of the amendments could not be incorporated due to inaccurate amendatory instruction.