Customers have 60 days to obtain the first-day-of-issue postmark by mail. They may purchase new stamps at Post Offices, at The Postal Store® at www.usps.com/shop
or by calling 800-STAMP-24. They should affix the stamps to envelopes
of their choice, address the envelopes to themselves or others and place
them in larger envelopes addressed to:
Celebrate Scouting Stamp
Special Cancellations
PO Box 92282
Washington, DC 20090-2282
Special Cancellations
PO Box 92282
Washington, DC 20090-2282
After applying the first-day-of-issue postmark, the Postal Service will return the envelopes through the mail. There is no charge for the postmark. All orders must be postmarked by August 9, 2012.
From: http://about.usps.com/postal-bulletin/2012/pb22338/html/kit.htm, accessed 05 JUN 2012.