From the Federal Register: The Postal Service is proposing to revise the Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) 114.2, 414.3, and 604.9, to state the conditions for Express Mail Next Day Delivery postage refunds when shipments are mailed each year during the time period of December 22 through December 25. Read more here.
From postcom.org
From postcom.org
