§ 690d. Debentures
(a)
 In general 
The Administrator may guarantee the timely payment of principal and interest, as scheduled, on debentures issued by any Renewable Fuel Capital Investment company.
(b)
 Terms and conditions 
The Administrator may make guarantees under this section on such terms and conditions as it determines appropriate, except that—
(c)
 Full faith and credit of the United States 
The full faith and credit of the United States is pledged to pay all amounts that may be required to be paid under any guarantee under this part.
(d)
 Maximum guarantee 
               	 	
               	 	
(1)
 In general 
Under this section, the Administrator may guarantee the debentures issued by a Renewable Fuel Capital Investment company only to the extent that the total face amount of outstanding guaranteed debentures of such company does not exceed 150 percent of the private capital of the company, as determined by the Administrator.