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1 International Mail Services > 110 General Information > 112 Mailer Responsibility
Regardless of any statement contained in this manual or the statements of any employee of the United States Postal Service, the burden rests with the mailer to ensure that he or she has complied with the prescribed laws and regulations governing domestic and international mail, both those of the United States and those of the destination country. Full responsibility rests with the mailer to comply with all postal and nonpostal laws and regulations regarding the mailing of dangerous goods. Anyone who mails, or causes to be mailed, nonmailable or improperly packaged dangerous goods can be subject to legal penalties, including but not limited to those specified in Title 18 of the United States Code (18 U.S.C.).