psyop-military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments.
Choose certified mail when you need proof of delivery and time is of the essence. Registered mail is the Postal Service's most secure form of mail delivery, involving an unbroken chain of custody. Registered mail is protected in sealed containers, safes and cages, and held under lock and key.
Added Protection. The primary difference between registered mail and certified mail is how your items are treated once the postal service takes custody of them. Registered mail is designed to provide security rather than speed.ertified Mail. Certified mail is useful when you need verification that a letter was sent and that delivery was made or attempted. Complete the green PS Form 3800, attach the bar code to your item and pay the required fee. Request a postmark on the form that proves when you mailed the item.