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United States Postal Service Exemption Codes

December 19, 2012
Thomas White
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Do you have a holiday package you need to ship out of the country?

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We have received many calls from customers using the United States Postal Service (USPS) website.

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When you visit the, it gives several options to choose from when supplying package information to the site for proper mailing (‘Enter Customs Information’). Let us clarify a couple of key elements:

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Proof of Filing Citation (PFC): notification confirming that you filed to the Automated Export System. This is also known as the Internal Transaction Number or ITN.
AES Exemption : If you are not required to file, this note indicates why you are exempt from filing.

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Choosing the Appropriate Exemption

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On, the two main options to choose from are: 30.36 and 30.37(a). Take a look at what they mean:

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  • 30.36: Use for shipments destined to Canada that do not require a license, regardless of value.
  • 30.37(a): Use for shipments under $2,500 destined to countries other than Canada that do not require a license.

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For more information about these exemptions and/or other regulation questions, please use the following link:

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If you are still unsure, give us a call at 800-549-0595, option 3 to speak with a specialist.

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