I am hoping that it keeps it's own stamp revenue because if that money goes into the general fund it might as well go into a black hole.
So far I have found this from the U.S. Presidents budget for the USPS:
"Financing.—The activities of the U.S. Postal Service are financed from the following sources: (1) mail and services revenue; (2) reimbursements from Federal and non-Federal sources; (3) proceeds from borrowing; (4) interest from U.S. securities and other investments; and (5) appropriations by the Congress. All receipts and deposits are made to the Postal Service Fund and are available without fiscal year limitation for payment of all expenses incurred, retirement of obligations, investment in capital assets, and investment in obligations and securities."
And this is not authoratative but the reporter says:
"Wouldn’t it be sweet if our post office poured billions into government coffers instead of sucking them out? Such an impossible dream is possible."
http://www.evesun.com/news/stories/2008-08-25/5021/The-Impossible-Dream/
This article does not answer the question either but it did have some very interesting things to say:
http://www.heritage.org/Research/GovernmentReform/BG1685.cfm
This paragraph from the U.S. budget lays out the goals for the post office:
" Postal reform must be accomplished in a responsible manner that is fair to taxpayers, ratepayers, and Postal Service employees. It must be consistent with the principles of best governance practices, transparency, flexibility, accountability, and self-finance, as expressed by the President in December 2003, and not have an adverse impact on the Federal budget. To this end, the Administration supports reforms that: allow the Postal Service pricing flexibility, but within a firm annual Consumer Price Index rate cap and with a strict limit on the circumstances when rates can exceed the cap; require compliance with all Securities and Exchange Commission financial reporting standards; and permit greater flexibility in the use of negotiated service agreements and worksharing arrangements. In addition, the 2007 Budget proposes to use the pension savings provided to the Postal Service by the Postal Civil Service Retirement System Funding Reform Act of 2003 (P.L. 108-18) that would otherwise be held in escrow in 2006 and beyond, to put the Postal Service on a path that fully funds its substantial retiree health benefits liabilities."
I still agree that we have not seen a clear statement.
