What class of mail is offered?

Presorted Standard 500 pieces required to qualify for Presort Standard. Post office delivery time is estimated two weeks. Cheapest postage rate but longest delivery time. Presorted First Class 500 pieces minimum Post office delivery time is estimated 1 - 4business days. Non-Profit (Standard) 500 pieces minimum Provide proper documentation to qualify for Non-Profit rate. Read: PS Form 3623 Post office delivery time is estimated two weeks (Same as Presort Standard). Uses customer's Non-Profit account with 4OVER4.COM’S permit number.