Christmas Shipping Deadlines 2021 - When to Ship Holiday Pack…
https://www.thepioneerwoman.com/holidays-celebrations/a38268382/christmas-shipping-deadlines/
USPS Holiday Shipping Dates 2021 December 15: Last day for Ground Service December 17: Last day for First Class Mail December 18: Last day for Priority Mail December 23: Last day for Priority Mail Express
December 15: Last day for Ground Service
December 17: Last day for First Class Mail
December 18: Last day for Priority Mail
December 23: Last day for Priority Mail Express
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