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U.S. Code of Federal Regula...
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Title 19—Customs Duties
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CHAPTER I—U.S. CUSTOMS AND ...
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PART 101—GENERAL PROVISIONS
PART 101—GENERAL PROVISIONS
§ 101.0 - Scope.
§ 101.1 - Definitions.
§ 101.2 - Authority of Customs officers.
§ 101.3 - Customs service ports and ports of entry.
§ 101.4 - Entry and clearance of vessels at Customs stations.
§ 101.5 - CBP preclearance offices in foreign countries.
§ 101.6 - Hours of business.
§ 101.7 - Customs seal.
§ 101.8 - Identification cards.
§ 101.9 - Test programs or procedures; alternate requirements.
§ 101.10 - Centers of Excellence and Expertise.