CFR > Title 7 - Agriculture > SUBTITLE B—Regulations of the Department of Agriculture > CHAPTER XXXV—RURAL HOUSING SERVICE, DEPARTMENT OF AGRICULTURE (parts 3550 to 3575) > PART 3550—DIRECT SINGLE FAMILY HOUSING LOANS AND GRANTS > SUBPART B—Section 502 Origination (§3550.51 to §3550.100) > 3550.66—Interest rate.