US Regulatory Notice. MyCustomsInfo® is an independent compliance auditor. It does not conduct customs business as defined under 19 U.S.C. §1641. The specific tariff classification to be applied to any entry of merchandise is to be determined by a licensed Customhouse broker. MyCustomsInfo® output does not constitute entry preparation, classification advice, or customs broker services. Preparation and filing of Post-Entry Amendments, Post-Summary Corrections, protests, and drawback claims must be performed by a licensed customs broker. US broker records are held in US AWS regions in compliance with 19 C.F.R. §111.23. Primary authority: CBP HQ H272798 (January 2017). Supporting authority: CBP HQ H350722 (January 2026).