ps5991.htm
Rule 424 (b) (3)
                                                                                                          Registration No. 333-177949
 
 
CALCULATION OF REGISTRATION FEE
 
Title of Each Class of
Securities Offered
 
  
Maximum Aggregate
Offering Price
  
Amount of
Registration
Fee(1)(2)
Senior Debt Securities
  
$200,000.00
  
$27.28
 
(1)
Calculated in accordance with Rule 457(r) of the Securities Act of 1933.
 
(2)
The amount in this column has been transmitted to the SEC in connection with the securities offered by means of this pricing supplement.
 
TRADE DATE: April 10, 2013     
PRICING SUPPLEMENT NO. 5991 DATED April 10, 2013
TO PROSPECTUS SUPPLEMENT DATED November 17, 2011
AND BASE PROSPECTUS DATED November 14, 2011
  
NATIONAL RURAL UTILITES COOPERATIVE FINANCE CORPORATION
Medium-Term Notes, Series C
Due Nine Months or More from Date of Issue
 
Principal Amount:
$200,000.00
  
     
Issue Price:
100% of Principal Amount
  
     
Original Issue Date:
04/15/2013
  
     
Maturity Date:
04/15/15
  
     
Interest Rate:
1.08% per annum
  
     
Regular Record Dates:
Each January 1 and July 1
  
     
Interest Payment Dates:
Each January 15 and July 15
  
     
Redemption Date:
None
  
     
Agent's Commission:
None
  
     
Form of Note:
Certificated
  
     (Book-Entry or Certificated)
    
     
Other Terms:
None
  
     
Medium-Term Notes, Series C may be issued by the Company in an unlimited aggregate principal amount.