Holiday shipping deadlines are getting closer this December.

The United States Postal Service states that Tuesday, December 15th is the deadline for USPS Retail Ground Service. December 18th is the deadline for first-class mail service, and most holiday military mail with Priority Mail Express Service. December 19th is the deadline for Priority Mail Service, and the final deadline is December 23rd for Priority Mail Express Service.

Those needing to send a special letter to the man in red are reminded the deadline to drop them off in the big red mailbox in Washington’s Central Park is December 21st. All letters that are labeled with a clear name and address that are received by noon that day will get a letter back from Santa Claus.