Filed pursuant to Rule 433

Registration No. 333-177949

CUSIP #:  63743HEB4

NATIONAL RURAL UTILITIES COOPERATIVE FINANCE CORPORATION

Medium-Term Notes, Series C

With Maturities of Nine Months or More from Date of Issue

Floating Rate Notes

Issuer:	National Rural Utilities Cooperative Finance Corporation
Issue Ratings:	A2 / A (Moody’s / S&P)
Principal Amount:	$175,000,000.00
Security Type:	Senior Unsecured
Issue Price:	100% of Principal Amount
Trade Date:	December 7, 2011
Original Issue Date:	December 14, 2011
Maturity Date:	January 7, 2013
Initial Interest Rate:	Determined as if the Original Issue Date was an Interest Reset Date
Base Rate:	USD 3-Month LIBOR
Spread:	Plus 12.5 basis points
Index Maturity:	3-Month
Interest Payment Dates:	March 14, 2012, June 14, 2012, September 14, 2012, December 14, 2012 with a short last coupon on January 7, 2013
Interest Reset Dates:	March 14, 2012, June 14, 2012, September 14, 2012 and December 14, 2012
Redemption Date:	None
Agent's Discount or Commision:	0.05%
Agent:	Mizuho Securities USA Inc.
Capacity:	Agent
Form of Note: (Book-Entry or Certificated)	Book-Entry
Denominations:	$2,000 x $1,000
Other Terms:	None

Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

The issuer has filed a registration statement (including a prospectus) with the U.S. Securities and Exchange Commission (SEC) for this offering. Before you invest, you should read the prospectus for this offering in that registration statement, and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by searching the SEC online database (EDGAR®) at www.sec.gov. Alternatively, you may obtain a copy of the prospectus from Mizuho Securities by calling toll-free at 1-866-271-7403.