: Mailings must consist of at least 200 pieces (or 50 pounds) but no more than 5,000 pieces per day per 5-digit ZIP Code.
: All mailpieces must be separated by delivery route or Post Office Box section. 145.zip
: Delivery statistics and route information must be obtained using the USPS EDDM web tool . Physical Standards for 145 Flats : Mailings must consist of at least 200
To qualify under these standards, the pieces must meet specific dimensions: 145.zip
: More than 11-1/2 inches but not more than 15 inches long.
: More than 6-1/8 inches but not more than 12 inches high.
If your request refers to technical text for a product description, "145 Zip" often refers to the from KUIU . Material : Uses Nuyarn® Merino technology.