5 Cooperative Mailings
The cooperative mail rule applies to all mail entered as Nonprofit Standard
Mail, with the exception of certain fundraising mailings. The scope of this
exception is discussed in 5-2.
A cooperative mailing is a mailing produced by an authorized organization
that "cooperates" with one or more organizations to share the cost, risk, or
benefit of the mailing. Cooperative mailings may not be entered at the
Nonprofit Standard Mail (nonprofit) rates unless all cooperating organizations
are authorized to mail at these rates at the Post Office of mailing.
Furthermore, the cooperative mail rule prevents authorized organizations
from sharing their authorizations with others who are not authorized. The rule
restricts Nonprofit Standard Mail mailings to the authorized organizations'