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When you need to verify that you’ve sent a letter or package - purchase a Certificate of Mailing.
A Certificate of Mailing is a receipt that provides evidence of the date that your mail was presented to the Postal Service™ for mailing. It can only be purchased at the time of mailing. And don’t lose it! It’s the only official record available.
Learn about detailed Features and Fees for Certificate of Mailing.
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Locate a Post Office
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Find a nearby Post Office™ – right from your computer.
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You use Certificate of Mailing with:
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First-Class Mail® – Letters, envelopes, and small packages weighing 13 ounces or less. |
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Standard Mail - Items weighing less than 16 ounces can be sent at discounted presorted and automation rates. |
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Package Services - Send small and large packages, envelopes, and tubes. includes Parcel Post®, Media Mail, Bound Printed Matter, and Library Mail. |
You can combine Certificate of Mailing with the following Extra Services:
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