145.zip Info

: It is a thermoregulating, mid-weight wool-nylon blend designed as a versatile base layer or next-to-skin piece. 145 Mail Preparation - Postal Explorer - USPS

: More than 11-1/2 inches but not more than 15 inches long. 145.zip

: Prepared mail must be presented directly to the specific delivery Post Office or destination unit (DDU/S&DC) responsible for those routes. : It is a thermoregulating, mid-weight wool-nylon blend

: Delivery statistics and route information must be obtained using the USPS EDDM web tool . Physical Standards for 145 Flats : It is a thermoregulating

: More than 1/4 inch but not more than 3/4 inch thick.

: 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.