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Publication 52 - Hazardous, Restricted, and Perishable Mail >
4 Restricted Matter > 43 Firearms > 433 Legal Opinions on Mailing Firearms
Postmasters are not authorized to give opinions on the legality of any shipment of firearms. Mailers requesting additional information should be referred to the ATF. Further advice and ATF contact information is available at http://atf.gov/firearms/faq/licensing.html.