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General Provisions | Midpage
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Code of Federal Regulations
Title 19
Chapter I
Part 145
Subpart A
General Provisions
145.1
Definitions.
145.2
Mail subject to Customs examination.
145.3
Opening of letter class mail; reading of correspondence prohibited.
145.4
Dutiable merchandise without declaration or invoice, prohibited merchandise, and merchandise imported contrary to law.
145.5
Undeliverable packages.