# Customs & Trade > US import/export compliance: Customs and Border Protection regulations under 19 CFR governing entry, classification, and valuation; US Trade Representative actions including Section 301 tariffs; the Harmonized Tariff Schedule; and Bureau of Industry and Security export administration regulations — grounded exclusively in CBP.gov, USTR.gov, USITC.gov, and BIS.doc.gov regulatory text. License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Source: MIND (m-i-n-d.ai) Hub: https://www.m-i-n-d.ai/minds/customs-trade