This means getting your mail out on Wednesday, Thursday, or Friday. When sending mailings off-campus to be processed, notify CMS 48 hours in advance of the approximate count of your mailing, so they can ensure adequate funds at the post office to cover the mailing, and, be sure to send a charge slip to CMS so they can bill the proper account. There are severe restrictions on where the permit imprint, return address, and endorsements must be placed on the mailpiece. Check with CMS before having the mailpiece printed. Commercial bulk rates must be paid on such mailings.
Examples are tour or travel offerings, bank-cards, athletic equipment, etc.
Call CMS to clear use of the non-profit permit if you are in doubt.