The Naval Supply Systems Command's (NAVSUP) mail-by dates for pre-Dec. 25 deliveries of holiday cards, letters, and packages are now available on the U.S. Navy website. Customers should check with local civilian or military post offices for information regarding size restrictions and customs declaration form requirements. Mailing restrictions apply, and some items cannot be mailed. For more information, contact your local civilian or military post office.
For more holiday deadlines for shipping packages, see this Military.com page on mailing packages.