Pieces are eligible if not required to be mailed at First-Class rates or not eligible for Periodicals rates. Rate is based on tray in which package is placed. A certified process must be used at least once a year to ensure accuracy of 5-digit ZIP Codes. Quick Service Guide 631. See below for tray label Line 2 information.
Additional standards apply to mailings of nonidentical-weight pieces.
Packaging not required if sufficient quantity to fill a 5-digit tray. For Line 1, use city, state, and 5-digit ZIP Code on mail. For Line 1, use L004 for destination facility. Any remaining pieces must be packaged in mixed ADC packages. Any remaining packages placed in mixed ADC trays.