Updated January 2001
This Customer Support Ruling discusses
advertisements in books mailed at the Media Mail rates of postage.
Domestic Mail Manual (DMM) 473.2.2* prescribes, in part,
that books to be eligible for mailing at the Media Mail Mail rate of postage, may
contain no advertising matter other than incidental announcements of books.
The publications which are advertised
in such books do not have to be eligible for mailing at the Media Mail rate.
However, they must be books. There may not be advertising for catalogs, calendars,
checkbooks, or other miscellaneous printed materials in the books being mailed at
the Media Mail rate of postage.
*See also DMM 173.3 and 373.2.
United States Postal Service
Washington DC 20260-3436