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602 Addressing | Postal Explorer - USPS
A clear space must be available on all mail for the address, postage (permit imprint, postage stamp, or meter stamp), postmarks, and postal endorsements. 1.2
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PS Form 3811-A - About USPS home
Complete the items in Section 3 below. Enter the delivery information or indicate the reason for no information. 3. After completion, detach and insert the
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123 Customs Forms and Online Shipping Labels
123 Customs Forms and Online Shipping Labels. 123.1 General. Only two customs declaration forms are used, as required under 123.6, for international mail:
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