USPS: Critical Mail — Just the Ticket for Important Documents
Delivers High-Impact Design and Low, Flat-Rate Pricing for Commercial Mailers WASHINGTON — Important, time-sensitive materials requiring tracking and secure delivery now have a new product from the U.S. Postal Service designed to get attention upon arrival. Introduced Jan. 2, Critical Mail provides commercial mailers with eye-catching envelope designs, tracking services and simple, low flat-rate pricing. […]