Effective close-of-business November 30, 2019, all Post Offices, stations, branches, and contract postal units must withdraw from sale all Alzheimer’s semipostal stamp stock (item 564200). As outlined in the Federal Register, discretionary semipostal stamps remain on sale for a 2-year period. Retain these items at the unit level until further notice. Do not prepare these items for destruction at this time.
Absolutely no sales of the Alzheimer’s semipostal stamps and products are permitted at retail counters and outlets after November 30, 2019. The items are also withdrawn from sale at Stamp Fulfillment Services and The Postal Store® at usps.com/shop.
— Stamp Services, Marketing, 11-7-19